31107280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 77740560

約数和(自身を除く): 46633280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 257, 272, 340, 356, 445, 514, 680, 712, 890, 1028, 1285, 1360, 1424, 1513, 1780, 2056, 2570, 3026, 3560, 4112, 4369, 5140, 6052, 7120, 7565, 8738, 10280, 12104, 15130, 17476, 20560, 21845, 22873, 24208, 30260, 34952, 43690, 45746, 60520, 69904, 87380, 91492, 114365, 121040, 174760, 182984, 228730, 349520, 365968, 388841, 457460, 777682, 914920, 1555364, 1829840, 1944205, 3110728, 3888410, 6221456, 7776820, 15553640, 31107280]

約数ペア:

[(1, 31107280), (2, 15553640), (4, 7776820), (5, 6221456), (8, 3888410), (10, 3110728), (16, 1944205), (17, 1829840), (20, 1555364), (34, 914920), (40, 777682), (68, 457460), (80, 388841), (85, 365968), (89, 349520), (136, 228730), (170, 182984), (178, 174760), (257, 121040), (272, 114365), (340, 91492), (356, 87380), (445, 69904), (514, 60520), (680, 45746), (712, 43690), (890, 34952), (1028, 30260), (1285, 24208), (1360, 22873), (1424, 21845), (1513, 20560), (1780, 17476), (2056, 15130), (2570, 12104), (3026, 10280), (3560, 8738), (4112, 7565), (4369, 7120), (5140, 6052)]