81474840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{997}}^1$

素因数の和:1241

約数の個数: 96

約数和(自身を含む): 266226480

約数和(自身を除く): 184751640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 227, 360, 454, 681, 908, 997, 1135, 1362, 1816, 1994, 2043, 2270, 2724, 2991, 3405, 3988, 4086, 4540, 4985, 5448, 5982, 6810, 7976, 8172, 8973, 9080, 9970, 10215, 11964, 13620, 14955, 16344, 17946, 19940, 20430, 23928, 27240, 29910, 35892, 39880, 40860, 44865, 59820, 71784, 81720, 89730, 119640, 179460, 226319, 358920, 452638, 678957, 905276, 1131595, 1357914, 1810552, 2036871, 2263190, 2715828, 3394785, 4073742, 4526380, 5431656, 6789570, 8147484, 9052760, 10184355, 13579140, 16294968, 20368710, 27158280, 40737420, 81474840]

約数ペア:

[(1, 81474840), (2, 40737420), (3, 27158280), (4, 20368710), (5, 16294968), (6, 13579140), (8, 10184355), (9, 9052760), (10, 8147484), (12, 6789570), (15, 5431656), (18, 4526380), (20, 4073742), (24, 3394785), (30, 2715828), (36, 2263190), (40, 2036871), (45, 1810552), (60, 1357914), (72, 1131595), (90, 905276), (120, 678957), (180, 452638), (227, 358920), (360, 226319), (454, 179460), (681, 119640), (908, 89730), (997, 81720), (1135, 71784), (1362, 59820), (1816, 44865), (1994, 40860), (2043, 39880), (2270, 35892), (2724, 29910), (2991, 27240), (3405, 23928), (3988, 20430), (4086, 19940), (4540, 17946), (4985, 16344), (5448, 14955), (5982, 13620), (6810, 11964), (7976, 10215), (8172, 9970), (8973, 9080)]