About the Number

388593990

388593989 ← → 388593991

2進数表記:10111001010010111100101000110

漢数字表記:三億八千八百五十九万三千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 17 1 × 31 1 × 2731 1

素因数の和:2795
約数の個数: 128
約数和(自身を含む): 1133015040
約数和(自身を除く): 744421050

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 31, 34, 45, 51, 54, 62, 85, 90, 93, 102, 135, 153, 155, 170, 186, 255, 270, 279, 306, 310, 459, 465, 510, 527, 558, 765, 837, 918, 930, 1054, 1395, 1530, 1581, 1674, 2295, 2635, 2731, 2790, 3162, 4185, 4590, 4743, 5270, 5462, 7905, 8193, 8370, 9486, 13655, 14229, 15810, 16386, 23715, 24579, 27310, 28458, 40965, 46427, 47430, 49158, 71145, 73737, 81930, 84661, 92854, 122895, 139281, 142290, 147474, 169322, 232135, 245790, 253983, 278562, 368685, 417843, 423305, 464270, 507966, 696405, 737370, 761949, 835686, 846610, 1253529, 1269915, 1392810, 1439237, 1523898, 2089215, 2285847, 2507058, 2539830, 2878474, 3809745, 4178430, 4317711, 4571694, 6267645, 7196185, 7619490, 8635422, 11429235, 12535290, 12953133, 14392370, 21588555, 22858470, 25906266, 38859399, 43177110, 64765665, 77718798, 129531330, 194296995, 388593990]

約数ペア:
[(1, 388593990), (2, 194296995), (3, 129531330), (5, 77718798), (6, 64765665), (9, 43177110), (10, 38859399), (15, 25906266), (17, 22858470), (18, 21588555), (27, 14392370), (30, 12953133), (31, 12535290), (34, 11429235), (45, 8635422), (51, 7619490), (54, 7196185), (62, 6267645), (85, 4571694), (90, 4317711), (93, 4178430), (102, 3809745), (135, 2878474), (153, 2539830), (155, 2507058), (170, 2285847), (186, 2089215), (255, 1523898), (270, 1439237), (279, 1392810), (306, 1269915), (310, 1253529), (459, 846610), (465, 835686), (510, 761949), (527, 737370), (558, 696405), (765, 507966), (837, 464270), (918, 423305), (930, 417843), (1054, 368685), (1395, 278562), (1530, 253983), (1581, 245790), (1674, 232135), (2295, 169322), (2635, 147474), (2731, 142290), (2790, 139281), (3162, 122895), (4185, 92854), (4590, 84661), (4743, 81930), (5270, 73737), (5462, 71145), (7905, 49158), (8193, 47430), (8370, 46427), (9486, 40965), (13655, 28458), (14229, 27310), (15810, 24579), (16386, 23715)]

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