81073520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:714

約数の個数: 80

約数和(自身を含む): 207174240

約数和(自身を除く): 126100720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 440, 509, 724, 880, 905, 1018, 1448, 1810, 1991, 2036, 2545, 2896, 3620, 3982, 4072, 5090, 5599, 7240, 7964, 8144, 9955, 10180, 11198, 14480, 15928, 19910, 20360, 22396, 27995, 31856, 39820, 40720, 44792, 55990, 79640, 89584, 92129, 111980, 159280, 184258, 223960, 368516, 447920, 460645, 737032, 921290, 1013419, 1474064, 1842580, 2026838, 3685160, 4053676, 5067095, 7370320, 8107352, 10134190, 16214704, 20268380, 40536760, 81073520]

約数ペア:

[(1, 81073520), (2, 40536760), (4, 20268380), (5, 16214704), (8, 10134190), (10, 8107352), (11, 7370320), (16, 5067095), (20, 4053676), (22, 3685160), (40, 2026838), (44, 1842580), (55, 1474064), (80, 1013419), (88, 921290), (110, 737032), (176, 460645), (181, 447920), (220, 368516), (362, 223960), (440, 184258), (509, 159280), (724, 111980), (880, 92129), (905, 89584), (1018, 79640), (1448, 55990), (1810, 44792), (1991, 40720), (2036, 39820), (2545, 31856), (2896, 27995), (3620, 22396), (3982, 20360), (4072, 19910), (5090, 15928), (5599, 14480), (7240, 11198), (7964, 10180), (8144, 9955)]