208889780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 500290560

約数和(自身を除く): 291400780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 109, 110, 124, 155, 218, 220, 281, 310, 341, 436, 545, 562, 620, 682, 1090, 1124, 1199, 1364, 1405, 1705, 2180, 2398, 2810, 3091, 3379, 3410, 4796, 5620, 5995, 6182, 6758, 6820, 8711, 11990, 12364, 13516, 15455, 16895, 17422, 23980, 30629, 30910, 33790, 34844, 37169, 43555, 61258, 61820, 67580, 74338, 87110, 95821, 122516, 148676, 153145, 174220, 185845, 191642, 306290, 336919, 371690, 383284, 479105, 612580, 673838, 743380, 949499, 958210, 1347676, 1684595, 1898998, 1916420, 3369190, 3797996, 4747495, 6738380, 9494990, 10444489, 18989980, 20888978, 41777956, 52222445, 104444890, 208889780]

約数ペア:

[(1, 208889780), (2, 104444890), (4, 52222445), (5, 41777956), (10, 20888978), (11, 18989980), (20, 10444489), (22, 9494990), (31, 6738380), (44, 4747495), (55, 3797996), (62, 3369190), (109, 1916420), (110, 1898998), (124, 1684595), (155, 1347676), (218, 958210), (220, 949499), (281, 743380), (310, 673838), (341, 612580), (436, 479105), (545, 383284), (562, 371690), (620, 336919), (682, 306290), (1090, 191642), (1124, 185845), (1199, 174220), (1364, 153145), (1405, 148676), (1705, 122516), (2180, 95821), (2398, 87110), (2810, 74338), (3091, 67580), (3379, 61820), (3410, 61258), (4796, 43555), (5620, 37169), (5995, 34844), (6182, 33790), (6758, 30910), (6820, 30629), (8711, 23980), (11990, 17422), (12364, 16895), (13516, 15455)]