78418431

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 146540576

約数和(自身を除く): 68122145

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 181, 207, 273, 299, 483, 529, 543, 819, 897, 1267, 1449, 1587, 1629, 2093, 2353, 2691, 3703, 3801, 4163, 4761, 6279, 6877, 7059, 11109, 11403, 12489, 16471, 18837, 20631, 21177, 29141, 33327, 37467, 48139, 49413, 54119, 61893, 87423, 95749, 144417, 148239, 162357, 262269, 287247, 378833, 433251, 487071, 670243, 861741, 1136499, 1244737, 2010729, 3409497, 3734211, 6032187, 8713159, 11202633, 26139477, 78418431]

約数ペア:

[(1, 78418431), (3, 26139477), (7, 11202633), (9, 8713159), (13, 6032187), (21, 3734211), (23, 3409497), (39, 2010729), (63, 1244737), (69, 1136499), (91, 861741), (117, 670243), (161, 487071), (181, 433251), (207, 378833), (273, 287247), (299, 262269), (483, 162357), (529, 148239), (543, 144417), (819, 95749), (897, 87423), (1267, 61893), (1449, 54119), (1587, 49413), (1629, 48139), (2093, 37467), (2353, 33327), (2691, 29141), (3703, 21177), (3801, 20631), (4163, 18837), (4761, 16471), (6279, 12489), (6877, 11403), (7059, 11109)]