29811920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 72651600

約数和(自身を除く): 42839680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 149, 164, 205, 244, 298, 305, 328, 410, 488, 596, 610, 656, 745, 820, 976, 1192, 1220, 1490, 1640, 2384, 2440, 2501, 2980, 3280, 4880, 5002, 5960, 6109, 9089, 10004, 11920, 12218, 12505, 18178, 20008, 24436, 25010, 30545, 36356, 40016, 45445, 48872, 50020, 61090, 72712, 90890, 97744, 100040, 122180, 145424, 181780, 200080, 244360, 363560, 372649, 488720, 727120, 745298, 1490596, 1863245, 2981192, 3726490, 5962384, 7452980, 14905960, 29811920]

約数ペア:

[(1, 29811920), (2, 14905960), (4, 7452980), (5, 5962384), (8, 3726490), (10, 2981192), (16, 1863245), (20, 1490596), (40, 745298), (41, 727120), (61, 488720), (80, 372649), (82, 363560), (122, 244360), (149, 200080), (164, 181780), (205, 145424), (244, 122180), (298, 100040), (305, 97744), (328, 90890), (410, 72712), (488, 61090), (596, 50020), (610, 48872), (656, 45445), (745, 40016), (820, 36356), (976, 30545), (1192, 25010), (1220, 24436), (1490, 20008), (1640, 18178), (2384, 12505), (2440, 12218), (2501, 11920), (2980, 10004), (3280, 9089), (4880, 6109), (5002, 5960)]