81572920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1097}}^1$

素因数の和:1145

約数の個数: 96

約数和(自身を含む): 217008720

約数和(自身を除く): 135435800

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 286, 338, 440, 520, 572, 676, 715, 845, 1097, 1144, 1352, 1430, 1690, 1859, 2194, 2860, 3380, 3718, 4388, 5485, 5720, 6760, 7436, 8776, 9295, 10970, 12067, 14261, 14872, 18590, 21940, 24134, 28522, 37180, 43880, 48268, 57044, 60335, 71305, 74360, 96536, 114088, 120670, 142610, 156871, 185393, 241340, 285220, 313742, 370786, 482680, 570440, 627484, 741572, 784355, 926965, 1254968, 1483144, 1568710, 1853930, 2039323, 3137420, 3707860, 4078646, 6274840, 7415720, 8157292, 10196615, 16314584, 20393230, 40786460, 81572920]

約数ペア:

[(1, 81572920), (2, 40786460), (4, 20393230), (5, 16314584), (8, 10196615), (10, 8157292), (11, 7415720), (13, 6274840), (20, 4078646), (22, 3707860), (26, 3137420), (40, 2039323), (44, 1853930), (52, 1568710), (55, 1483144), (65, 1254968), (88, 926965), (104, 784355), (110, 741572), (130, 627484), (143, 570440), (169, 482680), (220, 370786), (260, 313742), (286, 285220), (338, 241340), (440, 185393), (520, 156871), (572, 142610), (676, 120670), (715, 114088), (845, 96536), (1097, 74360), (1144, 71305), (1352, 60335), (1430, 57044), (1690, 48268), (1859, 43880), (2194, 37180), (2860, 28522), (3380, 24134), (3718, 21940), (4388, 18590), (5485, 14872), (5720, 14261), (6760, 12067), (7436, 10970), (8776, 9295)]