28261820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{823}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 63540288

約数和(自身を除く): 35278468

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 823, 1010, 1646, 1717, 2020, 3292, 3434, 4115, 6868, 8230, 8585, 13991, 16460, 17170, 27982, 34340, 55964, 69955, 83123, 139910, 166246, 279820, 332492, 415615, 831230, 1413091, 1662460, 2826182, 5652364, 7065455, 14130910, 28261820]

約数ペア:

[(1, 28261820), (2, 14130910), (4, 7065455), (5, 5652364), (10, 2826182), (17, 1662460), (20, 1413091), (34, 831230), (68, 415615), (85, 332492), (101, 279820), (170, 166246), (202, 139910), (340, 83123), (404, 69955), (505, 55964), (823, 34340), (1010, 27982), (1646, 17170), (1717, 16460), (2020, 13991), (3292, 8585), (3434, 8230), (4115, 6868)]