About the Number

388142640

388142639 ← → 388142641

2進数表記:10111001000101001011000110000

漢数字表記:三億八千八百十四万二千六百四十

素因数分解:

2 4 × 3 2 × 5 1 × 17 1 × 19 1 × 1669 1

素因数の和:1724
約数の個数: 240
約数和(自身を含む): 1453701600
約数和(自身を除く): 1065558960

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 48, 51, 57, 60, 68, 72, 76, 80, 85, 90, 95, 102, 114, 120, 136, 144, 152, 153, 170, 171, 180, 190, 204, 228, 240, 255, 272, 285, 304, 306, 323, 340, 342, 360, 380, 408, 456, 510, 570, 612, 646, 680, 684, 720, 760, 765, 816, 855, 912, 969, 1020, 1140, 1224, 1292, 1360, 1368, 1520, 1530, 1615, 1669, 1710, 1938, 2040, 2280, 2448, 2584, 2736, 2907, 3060, 3230, 3338, 3420, 3876, 4080, 4560, 4845, 5007, 5168, 5814, 6120, 6460, 6676, 6840, 7752, 8345, 9690, 10014, 11628, 12240, 12920, 13352, 13680, 14535, 15021, 15504, 16690, 19380, 20028, 23256, 25035, 25840, 26704, 28373, 29070, 30042, 31711, 33380, 38760, 40056, 46512, 50070, 56746, 58140, 60084, 63422, 66760, 75105, 77520, 80112, 85119, 95133, 100140, 113492, 116280, 120168, 126844, 133520, 141865, 150210, 158555, 170238, 190266, 200280, 226984, 232560, 240336, 253688, 255357, 283730, 285399, 300420, 317110, 340476, 380532, 400560, 425595, 453968, 475665, 507376, 510714, 539087, 567460, 570798, 600840, 634220, 680952, 761064, 851190, 951330, 1021428, 1078174, 1134920, 1141596, 1201680, 1268440, 1276785, 1361904, 1426995, 1522128, 1617261, 1702380, 1902660, 2042856, 2156348, 2269840, 2283192, 2536880, 2553570, 2695435, 2853990, 3234522, 3404760, 3805320, 4085712, 4312696, 4566384, 4851783, 5107140, 5390870, 5707980, 6469044, 6809520, 7610640, 8086305, 8625392, 9703566, 10214280, 10781740, 11415960, 12938088, 16172610, 19407132, 20428560, 21563480, 22831920, 24258915, 25876176, 32345220, 38814264, 43126960, 48517830, 64690440, 77628528, 97035660, 129380880, 194071320, 388142640]

約数ペア:
[(1, 388142640), (2, 194071320), (3, 129380880), (4, 97035660), (5, 77628528), (6, 64690440), (8, 48517830), (9, 43126960), (10, 38814264), (12, 32345220), (15, 25876176), (16, 24258915), (17, 22831920), (18, 21563480), (19, 20428560), (20, 19407132), (24, 16172610), (30, 12938088), (34, 11415960), (36, 10781740), (38, 10214280), (40, 9703566), (45, 8625392), (48, 8086305), (51, 7610640), (57, 6809520), (60, 6469044), (68, 5707980), (72, 5390870), (76, 5107140), (80, 4851783), (85, 4566384), (90, 4312696), (95, 4085712), (102, 3805320), (114, 3404760), (120, 3234522), (136, 2853990), (144, 2695435), (152, 2553570), (153, 2536880), (170, 2283192), (171, 2269840), (180, 2156348), (190, 2042856), (204, 1902660), (228, 1702380), (240, 1617261), (255, 1522128), (272, 1426995), (285, 1361904), (304, 1276785), (306, 1268440), (323, 1201680), (340, 1141596), (342, 1134920), (360, 1078174), (380, 1021428), (408, 951330), (456, 851190), (510, 761064), (570, 680952), (612, 634220), (646, 600840), (680, 570798), (684, 567460), (720, 539087), (760, 510714), (765, 507376), (816, 475665), (855, 453968), (912, 425595), (969, 400560), (1020, 380532), (1140, 340476), (1224, 317110), (1292, 300420), (1360, 285399), (1368, 283730), (1520, 255357), (1530, 253688), (1615, 240336), (1669, 232560), (1710, 226984), (1938, 200280), (2040, 190266), (2280, 170238), (2448, 158555), (2584, 150210), (2736, 141865), (2907, 133520), (3060, 126844), (3230, 120168), (3338, 116280), (3420, 113492), (3876, 100140), (4080, 95133), (4560, 85119), (4845, 80112), (5007, 77520), (5168, 75105), (5814, 66760), (6120, 63422), (6460, 60084), (6676, 58140), (6840, 56746), (7752, 50070), (8345, 46512), (9690, 40056), (10014, 38760), (11628, 33380), (12240, 31711), (12920, 30042), (13352, 29070), (13680, 28373), (14535, 26704), (15021, 25840), (15504, 25035), (16690, 23256), (19380, 20028)]

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