17970920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 27993880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 79, 88, 94, 110, 121, 158, 188, 220, 235, 242, 316, 376, 395, 440, 470, 484, 517, 605, 632, 790, 869, 940, 968, 1034, 1210, 1580, 1738, 1880, 2068, 2420, 2585, 3160, 3476, 3713, 4136, 4345, 4840, 5170, 5687, 6952, 7426, 8690, 9559, 10340, 11374, 14852, 17380, 18565, 19118, 20680, 22748, 28435, 29704, 34760, 37130, 38236, 40843, 45496, 47795, 56870, 74260, 76472, 81686, 95590, 113740, 148520, 163372, 191180, 204215, 227480, 326744, 382360, 408430, 449273, 816860, 898546, 1633720, 1797092, 2246365, 3594184, 4492730, 8985460, 17970920]

約数ペア:

[(1, 17970920), (2, 8985460), (4, 4492730), (5, 3594184), (8, 2246365), (10, 1797092), (11, 1633720), (20, 898546), (22, 816860), (40, 449273), (44, 408430), (47, 382360), (55, 326744), (79, 227480), (88, 204215), (94, 191180), (110, 163372), (121, 148520), (158, 113740), (188, 95590), (220, 81686), (235, 76472), (242, 74260), (316, 56870), (376, 47795), (395, 45496), (440, 40843), (470, 38236), (484, 37130), (517, 34760), (605, 29704), (632, 28435), (790, 22748), (869, 20680), (940, 19118), (968, 18565), (1034, 17380), (1210, 14852), (1580, 11374), (1738, 10340), (1880, 9559), (2068, 8690), (2420, 7426), (2585, 6952), (3160, 5687), (3476, 5170), (3713, 4840), (4136, 4345)]