9701780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 23684640

約数和(自身を除く): 13982860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 211, 220, 242, 380, 418, 422, 484, 605, 836, 844, 1045, 1055, 1210, 2090, 2110, 2299, 2321, 2420, 4009, 4180, 4220, 4598, 4642, 8018, 9196, 9284, 11495, 11605, 16036, 20045, 22990, 23210, 25531, 40090, 44099, 45980, 46420, 51062, 80180, 88198, 102124, 127655, 176396, 220495, 255310, 440990, 485089, 510620, 881980, 970178, 1940356, 2425445, 4850890, 9701780]

約数ペア:

[(1, 9701780), (2, 4850890), (4, 2425445), (5, 1940356), (10, 970178), (11, 881980), (19, 510620), (20, 485089), (22, 440990), (38, 255310), (44, 220495), (55, 176396), (76, 127655), (95, 102124), (110, 88198), (121, 80180), (190, 51062), (209, 46420), (211, 45980), (220, 44099), (242, 40090), (380, 25531), (418, 23210), (422, 22990), (484, 20045), (605, 16036), (836, 11605), (844, 11495), (1045, 9284), (1055, 9196), (1210, 8018), (2090, 4642), (2110, 4598), (2299, 4220), (2321, 4180), (2420, 4009)]