18729920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 112

約数和(自身を含む): 51681888

約数和(自身を除く): 32951968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 313, 320, 340, 352, 374, 440, 544, 626, 680, 704, 748, 880, 935, 1088, 1252, 1360, 1496, 1565, 1760, 1870, 2504, 2720, 2992, 3130, 3443, 3520, 3740, 5008, 5321, 5440, 5984, 6260, 6886, 7480, 10016, 10642, 11968, 12520, 13772, 14960, 17215, 20032, 21284, 25040, 26605, 27544, 29920, 34430, 42568, 50080, 53210, 55088, 58531, 59840, 68860, 85136, 100160, 106420, 110176, 117062, 137720, 170272, 212840, 220352, 234124, 275440, 292655, 340544, 425680, 468248, 550880, 585310, 851360, 936496, 1101760, 1170620, 1702720, 1872992, 2341240, 3745984, 4682480, 9364960, 18729920]

約数ペア:

[(1, 18729920), (2, 9364960), (4, 4682480), (5, 3745984), (8, 2341240), (10, 1872992), (11, 1702720), (16, 1170620), (17, 1101760), (20, 936496), (22, 851360), (32, 585310), (34, 550880), (40, 468248), (44, 425680), (55, 340544), (64, 292655), (68, 275440), (80, 234124), (85, 220352), (88, 212840), (110, 170272), (136, 137720), (160, 117062), (170, 110176), (176, 106420), (187, 100160), (220, 85136), (272, 68860), (313, 59840), (320, 58531), (340, 55088), (352, 53210), (374, 50080), (440, 42568), (544, 34430), (626, 29920), (680, 27544), (704, 26605), (748, 25040), (880, 21284), (935, 20032), (1088, 17215), (1252, 14960), (1360, 13772), (1496, 12520), (1565, 11968), (1760, 10642), (1870, 10016), (2504, 7480), (2720, 6886), (2992, 6260), (3130, 5984), (3443, 5440), (3520, 5321), (3740, 5008)]