1999991092

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 3924589536

約数和(自身を除く): 1924598444

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 163, 202, 242, 251, 326, 404, 484, 502, 652, 1004, 1111, 1793, 2222, 2761, 3586, 4444, 5522, 7172, 11044, 12221, 16463, 19723, 24442, 25351, 30371, 32926, 39446, 40913, 48884, 50702, 60742, 65852, 78892, 81826, 101404, 121484, 163652, 181093, 278861, 362186, 450043, 557722, 724372, 900086, 1115444, 1800172, 1992023, 3067471, 3984046, 4132213, 4950473, 6134942, 7968092, 8264426, 9900946, 12269884, 16528852, 19801892, 45454343, 90908686, 181817372, 499997773, 999995546, 1999991092]

約数ペア:

[(1, 1999991092), (2, 999995546), (4, 499997773), (11, 181817372), (22, 90908686), (44, 45454343), (101, 19801892), (121, 16528852), (163, 12269884), (202, 9900946), (242, 8264426), (251, 7968092), (326, 6134942), (404, 4950473), (484, 4132213), (502, 3984046), (652, 3067471), (1004, 1992023), (1111, 1800172), (1793, 1115444), (2222, 900086), (2761, 724372), (3586, 557722), (4444, 450043), (5522, 362186), (7172, 278861), (11044, 181093), (12221, 163652), (16463, 121484), (19723, 101404), (24442, 81826), (25351, 78892), (30371, 65852), (32926, 60742), (39446, 50702), (40913, 48884)]