71223020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1549}}^1$

素因数の和:1599

約数の個数: 72

約数和(自身を含む): 173166000

約数和(自身を除く): 101942980

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, 1549, 2090, 2299, 2420, 3098, 4180, 4598, 6196, 7745, 9196, 11495, 15490, 17039, 22990, 29431, 30980, 34078, 45980, 58862, 68156, 85195, 117724, 147155, 170390, 187429, 294310, 323741, 340780, 374858, 588620, 647482, 749716, 937145, 1294964, 1618705, 1874290, 3237410, 3561151, 3748580, 6474820, 7122302, 14244604, 17805755, 35611510, 71223020]

約数ペア:

[(1, 71223020), (2, 35611510), (4, 17805755), (5, 14244604), (10, 7122302), (11, 6474820), (19, 3748580), (20, 3561151), (22, 3237410), (38, 1874290), (44, 1618705), (55, 1294964), (76, 937145), (95, 749716), (110, 647482), (121, 588620), (190, 374858), (209, 340780), (220, 323741), (242, 294310), (380, 187429), (418, 170390), (484, 147155), (605, 117724), (836, 85195), (1045, 68156), (1210, 58862), (1549, 45980), (2090, 34078), (2299, 30980), (2420, 29431), (3098, 22990), (4180, 17039), (4598, 15490), (6196, 11495), (7745, 9196)]