1281658680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{62459}}^1$

素因数の和:62498

約数の個数: 128

約数和(自身を含む): 4497120000

約数和(自身を除く): 3215461320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 20520, 62459, 124918, 187377, 249836, 312295, 374754, 499672, 562131, 624590, 749508, 936885, 1124262, 1186721, 1249180, 1499016, 1686393, 1873770, 2248524, 2373442, 2498360, 2810655, 3372786, 3560163, 3747540, 4497048, 4746884, 5621310, 5933605, 6745572, 7120326, 7495080, 8431965, 9493768, 10680489, 11242620, 11867210, 13491144, 14240652, 16863930, 17800815, 21360978, 22485240, 23734420, 28481304, 32041467, 33727860, 35601630, 42721956, 47468840, 53402445, 64082934, 67455720, 71203260, 85443912, 106804890, 128165868, 142406520, 160207335, 213609780, 256331736, 320414670, 427219560, 640829340, 1281658680]

約数ペア:

[(1, 1281658680), (2, 640829340), (3, 427219560), (4, 320414670), (5, 256331736), (6, 213609780), (8, 160207335), (9, 142406520), (10, 128165868), (12, 106804890), (15, 85443912), (18, 71203260), (19, 67455720), (20, 64082934), (24, 53402445), (27, 47468840), (30, 42721956), (36, 35601630), (38, 33727860), (40, 32041467), (45, 28481304), (54, 23734420), (57, 22485240), (60, 21360978), (72, 17800815), (76, 16863930), (90, 14240652), (95, 13491144), (108, 11867210), (114, 11242620), (120, 10680489), (135, 9493768), (152, 8431965), (171, 7495080), (180, 7120326), (190, 6745572), (216, 5933605), (228, 5621310), (270, 4746884), (285, 4497048), (342, 3747540), (360, 3560163), (380, 3372786), (456, 2810655), (513, 2498360), (540, 2373442), (570, 2248524), (684, 1873770), (760, 1686393), (855, 1499016), (1026, 1249180), (1080, 1186721), (1140, 1124262), (1368, 936885), (1710, 749508), (2052, 624590), (2280, 562131), (2565, 499672), (3420, 374754), (4104, 312295), (5130, 249836), (6840, 187377), (10260, 124918), (20520, 62459)]