20506320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1537

約数の個数: 120

約数和(自身を含む): 72540000

約数和(自身を除く): 52033680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1499, 1520, 1710, 2280, 2736, 2998, 3420, 4497, 4560, 5996, 6840, 7495, 8994, 11992, 13491, 13680, 14990, 17988, 22485, 23984, 26982, 28481, 29980, 35976, 44970, 53964, 56962, 59960, 67455, 71952, 85443, 89940, 107928, 113924, 119920, 134910, 142405, 170886, 179880, 215856, 227848, 256329, 269820, 284810, 341772, 359760, 427215, 455696, 512658, 539640, 569620, 683544, 854430, 1025316, 1079280, 1139240, 1281645, 1367088, 1708860, 2050632, 2278480, 2563290, 3417720, 4101264, 5126580, 6835440, 10253160, 20506320]

約数ペア:

[(1, 20506320), (2, 10253160), (3, 6835440), (4, 5126580), (5, 4101264), (6, 3417720), (8, 2563290), (9, 2278480), (10, 2050632), (12, 1708860), (15, 1367088), (16, 1281645), (18, 1139240), (19, 1079280), (20, 1025316), (24, 854430), (30, 683544), (36, 569620), (38, 539640), (40, 512658), (45, 455696), (48, 427215), (57, 359760), (60, 341772), (72, 284810), (76, 269820), (80, 256329), (90, 227848), (95, 215856), (114, 179880), (120, 170886), (144, 142405), (152, 134910), (171, 119920), (180, 113924), (190, 107928), (228, 89940), (240, 85443), (285, 71952), (304, 67455), (342, 59960), (360, 56962), (380, 53964), (456, 44970), (570, 35976), (684, 29980), (720, 28481), (760, 26982), (855, 23984), (912, 22485), (1140, 17988), (1368, 14990), (1499, 13680), (1520, 13491), (1710, 11992), (2280, 8994), (2736, 7495), (2998, 6840), (3420, 5996), (4497, 4560)]