12951280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 32542560

約数和(自身を除く): 19591280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 107, 136, 170, 178, 214, 272, 340, 356, 428, 445, 535, 680, 712, 856, 890, 1070, 1360, 1424, 1513, 1712, 1780, 1819, 2140, 3026, 3560, 3638, 4280, 6052, 7120, 7276, 7565, 8560, 9095, 9523, 12104, 14552, 15130, 18190, 19046, 24208, 29104, 30260, 36380, 38092, 47615, 60520, 72760, 76184, 95230, 121040, 145520, 152368, 161891, 190460, 323782, 380920, 647564, 761840, 809455, 1295128, 1618910, 2590256, 3237820, 6475640, 12951280]

約数ペア:

[(1, 12951280), (2, 6475640), (4, 3237820), (5, 2590256), (8, 1618910), (10, 1295128), (16, 809455), (17, 761840), (20, 647564), (34, 380920), (40, 323782), (68, 190460), (80, 161891), (85, 152368), (89, 145520), (107, 121040), (136, 95230), (170, 76184), (178, 72760), (214, 60520), (272, 47615), (340, 38092), (356, 36380), (428, 30260), (445, 29104), (535, 24208), (680, 19046), (712, 18190), (856, 15130), (890, 14552), (1070, 12104), (1360, 9523), (1424, 9095), (1513, 8560), (1712, 7565), (1780, 7276), (1819, 7120), (2140, 6052), (3026, 4280), (3560, 3638)]