16981640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 44097480

約数和(自身を除く): 27115840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 113, 130, 136, 170, 221, 226, 260, 289, 340, 442, 452, 520, 565, 578, 680, 884, 904, 1105, 1130, 1156, 1445, 1469, 1768, 1921, 2210, 2260, 2312, 2890, 2938, 3757, 3842, 4420, 4520, 5780, 5876, 7345, 7514, 7684, 8840, 9605, 11560, 11752, 14690, 15028, 15368, 18785, 19210, 24973, 29380, 30056, 32657, 37570, 38420, 49946, 58760, 65314, 75140, 76840, 99892, 124865, 130628, 150280, 163285, 199784, 249730, 261256, 326570, 424541, 499460, 653140, 849082, 998920, 1306280, 1698164, 2122705, 3396328, 4245410, 8490820, 16981640]

約数ペア:

[(1, 16981640), (2, 8490820), (4, 4245410), (5, 3396328), (8, 2122705), (10, 1698164), (13, 1306280), (17, 998920), (20, 849082), (26, 653140), (34, 499460), (40, 424541), (52, 326570), (65, 261256), (68, 249730), (85, 199784), (104, 163285), (113, 150280), (130, 130628), (136, 124865), (170, 99892), (221, 76840), (226, 75140), (260, 65314), (289, 58760), (340, 49946), (442, 38420), (452, 37570), (520, 32657), (565, 30056), (578, 29380), (680, 24973), (884, 19210), (904, 18785), (1105, 15368), (1130, 15028), (1156, 14690), (1445, 11752), (1469, 11560), (1768, 9605), (1921, 8840), (2210, 7684), (2260, 7514), (2312, 7345), (2890, 5876), (2938, 5780), (3757, 4520), (3842, 4420)]