18913759928

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{231809}}^1$

素因数の和:231900

約数の個数: 64

約数和(自身を含む): 42727219200

約数和(自身を除く): 23813459272

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 56, 62, 94, 124, 188, 217, 248, 329, 376, 434, 658, 868, 1316, 1457, 1736, 2632, 2914, 5828, 10199, 11656, 20398, 40796, 81592, 231809, 463618, 927236, 1622663, 1854472, 3245326, 6490652, 7186079, 10895023, 12981304, 14372158, 21790046, 28744316, 43580092, 50302553, 57488632, 76265161, 87160184, 100605106, 152530322, 201210212, 305060644, 337745713, 402420424, 610121288, 675491426, 1350982852, 2364219991, 2701965704, 4728439982, 9456879964, 18913759928]

約数ペア:

[(1, 18913759928), (2, 9456879964), (4, 4728439982), (7, 2701965704), (8, 2364219991), (14, 1350982852), (28, 675491426), (31, 610121288), (47, 402420424), (56, 337745713), (62, 305060644), (94, 201210212), (124, 152530322), (188, 100605106), (217, 87160184), (248, 76265161), (329, 57488632), (376, 50302553), (434, 43580092), (658, 28744316), (868, 21790046), (1316, 14372158), (1457, 12981304), (1736, 10895023), (2632, 7186079), (2914, 6490652), (5828, 3245326), (10199, 1854472), (11656, 1622663), (20398, 927236), (40796, 463618), (81592, 231809)]