28156828

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 60177600

約数和(自身を除く): 32020772

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 149, 238, 298, 397, 476, 596, 794, 1043, 1588, 2086, 2533, 2779, 4172, 5066, 5558, 6749, 10132, 11116, 13498, 17731, 26996, 35462, 47243, 59153, 70924, 94486, 118306, 188972, 236612, 414071, 828142, 1005601, 1656284, 2011202, 4022404, 7039207, 14078414, 28156828]

約数ペア:

[(1, 28156828), (2, 14078414), (4, 7039207), (7, 4022404), (14, 2011202), (17, 1656284), (28, 1005601), (34, 828142), (68, 414071), (119, 236612), (149, 188972), (238, 118306), (298, 94486), (397, 70924), (476, 59153), (596, 47243), (794, 35462), (1043, 26996), (1588, 17731), (2086, 13498), (2533, 11116), (2779, 10132), (4172, 6749), (5066, 5558)]