17951440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 46153296

約数和(自身を除く): 28201856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 421, 520, 533, 656, 820, 842, 1040, 1066, 1640, 1684, 2105, 2132, 2665, 3280, 3368, 4210, 4264, 5330, 5473, 6736, 8420, 8528, 10660, 10946, 16840, 17261, 21320, 21892, 27365, 33680, 34522, 42640, 43784, 54730, 69044, 86305, 87568, 109460, 138088, 172610, 218920, 224393, 276176, 345220, 437840, 448786, 690440, 897572, 1121965, 1380880, 1795144, 2243930, 3590288, 4487860, 8975720, 17951440]

約数ペア:

[(1, 17951440), (2, 8975720), (4, 4487860), (5, 3590288), (8, 2243930), (10, 1795144), (13, 1380880), (16, 1121965), (20, 897572), (26, 690440), (40, 448786), (41, 437840), (52, 345220), (65, 276176), (80, 224393), (82, 218920), (104, 172610), (130, 138088), (164, 109460), (205, 87568), (208, 86305), (260, 69044), (328, 54730), (410, 43784), (421, 42640), (520, 34522), (533, 33680), (656, 27365), (820, 21892), (842, 21320), (1040, 17261), (1066, 16840), (1640, 10946), (1684, 10660), (2105, 8528), (2132, 8420), (2665, 6736), (3280, 5473), (3368, 5330), (4210, 4264)]