20785770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 57081024

約数和(自身を除く): 36295254

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 43, 45, 82, 86, 90, 123, 129, 131, 205, 215, 246, 258, 262, 369, 387, 393, 410, 430, 615, 645, 655, 738, 774, 786, 1179, 1230, 1290, 1310, 1763, 1845, 1935, 1965, 2358, 3526, 3690, 3870, 3930, 5289, 5371, 5633, 5895, 8815, 10578, 10742, 11266, 11790, 15867, 16113, 16899, 17630, 26445, 26855, 28165, 31734, 32226, 33798, 48339, 50697, 52890, 53710, 56330, 79335, 80565, 84495, 96678, 101394, 158670, 161130, 168990, 230953, 241695, 253485, 461906, 483390, 506970, 692859, 1154765, 1385718, 2078577, 2309530, 3464295, 4157154, 6928590, 10392885, 20785770]

約数ペア:

[(1, 20785770), (2, 10392885), (3, 6928590), (5, 4157154), (6, 3464295), (9, 2309530), (10, 2078577), (15, 1385718), (18, 1154765), (30, 692859), (41, 506970), (43, 483390), (45, 461906), (82, 253485), (86, 241695), (90, 230953), (123, 168990), (129, 161130), (131, 158670), (205, 101394), (215, 96678), (246, 84495), (258, 80565), (262, 79335), (369, 56330), (387, 53710), (393, 52890), (410, 50697), (430, 48339), (615, 33798), (645, 32226), (655, 31734), (738, 28165), (774, 26855), (786, 26445), (1179, 17630), (1230, 16899), (1290, 16113), (1310, 15867), (1763, 11790), (1845, 11266), (1935, 10742), (1965, 10578), (2358, 8815), (3526, 5895), (3690, 5633), (3870, 5371), (3930, 5289)]