81791580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5519}}^1$

素因数の和:5563

約数の個数: 96

約数和(自身を含む): 259660800

約数和(自身を除く): 177869220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 2470, 2964, 3705, 4940, 5519, 7410, 11038, 14820, 16557, 22076, 27595, 33114, 55190, 66228, 71747, 82785, 104861, 110380, 143494, 165570, 209722, 215241, 286988, 314583, 331140, 358735, 419444, 430482, 524305, 629166, 717470, 860964, 1048610, 1076205, 1258332, 1363193, 1434940, 1572915, 2097220, 2152410, 2726386, 3145830, 4089579, 4304820, 5452772, 6291660, 6815965, 8179158, 13631930, 16358316, 20447895, 27263860, 40895790, 81791580]

約数ペア:

[(1, 81791580), (2, 40895790), (3, 27263860), (4, 20447895), (5, 16358316), (6, 13631930), (10, 8179158), (12, 6815965), (13, 6291660), (15, 5452772), (19, 4304820), (20, 4089579), (26, 3145830), (30, 2726386), (38, 2152410), (39, 2097220), (52, 1572915), (57, 1434940), (60, 1363193), (65, 1258332), (76, 1076205), (78, 1048610), (95, 860964), (114, 717470), (130, 629166), (156, 524305), (190, 430482), (195, 419444), (228, 358735), (247, 331140), (260, 314583), (285, 286988), (380, 215241), (390, 209722), (494, 165570), (570, 143494), (741, 110380), (780, 104861), (988, 82785), (1140, 71747), (1235, 66228), (1482, 55190), (2470, 33114), (2964, 27595), (3705, 22076), (4940, 16557), (5519, 14820), (7410, 11038)]