20513160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2999}}^1$

素因数の和:3035

約数の個数: 96

約数和(自身を含む): 70200000

約数和(自身を除く): 49686840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2999, 3420, 5998, 6840, 8997, 11996, 14995, 17994, 23992, 26991, 29990, 35988, 44985, 53982, 56981, 59980, 71976, 89970, 107964, 113962, 119960, 134955, 170943, 179940, 215928, 227924, 269910, 284905, 341886, 359880, 455848, 512829, 539820, 569810, 683772, 854715, 1025658, 1079640, 1139620, 1367544, 1709430, 2051316, 2279240, 2564145, 3418860, 4102632, 5128290, 6837720, 10256580, 20513160]

約数ペア:

[(1, 20513160), (2, 10256580), (3, 6837720), (4, 5128290), (5, 4102632), (6, 3418860), (8, 2564145), (9, 2279240), (10, 2051316), (12, 1709430), (15, 1367544), (18, 1139620), (19, 1079640), (20, 1025658), (24, 854715), (30, 683772), (36, 569810), (38, 539820), (40, 512829), (45, 455848), (57, 359880), (60, 341886), (72, 284905), (76, 269910), (90, 227924), (95, 215928), (114, 179940), (120, 170943), (152, 134955), (171, 119960), (180, 113962), (190, 107964), (228, 89970), (285, 71976), (342, 59980), (360, 56981), (380, 53982), (456, 44985), (570, 35988), (684, 29990), (760, 26991), (855, 23992), (1140, 17994), (1368, 14995), (1710, 11996), (2280, 8997), (2999, 6840), (3420, 5998)]