19842740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3433}}^1$

素因数の和:3476

約数の個数: 36

約数和(自身を含む): 44277996

約数和(自身を除く): 24435256

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3433, 5780, 6866, 13732, 17165, 34330, 58361, 68660, 116722, 233444, 291805, 583610, 992137, 1167220, 1984274, 3968548, 4960685, 9921370, 19842740]

約数ペア:

[(1, 19842740), (2, 9921370), (4, 4960685), (5, 3968548), (10, 1984274), (17, 1167220), (20, 992137), (34, 583610), (68, 291805), (85, 233444), (170, 116722), (289, 68660), (340, 58361), (578, 34330), (1156, 17165), (1445, 13732), (2890, 6866), (3433, 5780)]