71353580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 153679680

約数和(自身を除く): 82326100

約数列:

[1, 2, 4, 5, 10, 20, 71, 109, 142, 218, 284, 355, 436, 461, 545, 710, 922, 1090, 1420, 1844, 2180, 2305, 4610, 7739, 9220, 15478, 30956, 32731, 38695, 50249, 65462, 77390, 100498, 130924, 154780, 163655, 200996, 251245, 327310, 502490, 654620, 1004980, 3567679, 7135358, 14270716, 17838395, 35676790, 71353580]

約数ペア:

[(1, 71353580), (2, 35676790), (4, 17838395), (5, 14270716), (10, 7135358), (20, 3567679), (71, 1004980), (109, 654620), (142, 502490), (218, 327310), (284, 251245), (355, 200996), (436, 163655), (461, 154780), (545, 130924), (710, 100498), (922, 77390), (1090, 65462), (1420, 50249), (1844, 38695), (2180, 32731), (2305, 30956), (4610, 15478), (7739, 9220)]