618687520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31957}}^1$

素因数の和:31994

約数の個数: 72

約数和(自身を含む): 1606656492

約数和(自身を除く): 987968972

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4840, 9680, 19360, 31957, 63914, 127828, 159785, 255656, 319570, 351527, 511312, 639140, 703054, 1022624, 1278280, 1406108, 1757635, 2556560, 2812216, 3515270, 3866797, 5113120, 5624432, 7030540, 7733594, 11248864, 14061080, 15467188, 19333985, 28122160, 30934376, 38667970, 56244320, 61868752, 77335940, 123737504, 154671880, 309343760, 618687520]

約数ペア:

[(1, 618687520), (2, 309343760), (4, 154671880), (5, 123737504), (8, 77335940), (10, 61868752), (11, 56244320), (16, 38667970), (20, 30934376), (22, 28122160), (32, 19333985), (40, 15467188), (44, 14061080), (55, 11248864), (80, 7733594), (88, 7030540), (110, 5624432), (121, 5113120), (160, 3866797), (176, 3515270), (220, 2812216), (242, 2556560), (352, 1757635), (440, 1406108), (484, 1278280), (605, 1022624), (880, 703054), (968, 639140), (1210, 511312), (1760, 351527), (1936, 319570), (2420, 255656), (3872, 159785), (4840, 127828), (9680, 63914), (19360, 31957)]