73981820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 179869200

約数和(自身を除く): 105887380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 1609, 2090, 2299, 2420, 3218, 4180, 4598, 6436, 8045, 9196, 11495, 16090, 17699, 22990, 30571, 32180, 35398, 45980, 61142, 70796, 88495, 122284, 152855, 176990, 194689, 305710, 336281, 353980, 389378, 611420, 672562, 778756, 973445, 1345124, 1681405, 1946890, 3362810, 3699091, 3893780, 6725620, 7398182, 14796364, 18495455, 36990910, 73981820]

約数ペア:

[(1, 73981820), (2, 36990910), (4, 18495455), (5, 14796364), (10, 7398182), (11, 6725620), (19, 3893780), (20, 3699091), (22, 3362810), (38, 1946890), (44, 1681405), (55, 1345124), (76, 973445), (95, 778756), (110, 672562), (121, 611420), (190, 389378), (209, 353980), (220, 336281), (242, 305710), (380, 194689), (418, 176990), (484, 152855), (605, 122284), (836, 88495), (1045, 70796), (1210, 61142), (1609, 45980), (2090, 35398), (2299, 32180), (2420, 30571), (3218, 22990), (4180, 17699), (4598, 16090), (6436, 11495), (8045, 9196)]