20933680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 52568064

約数和(自身を除く): 31634384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 367, 368, 460, 496, 620, 713, 734, 920, 1240, 1426, 1468, 1835, 1840, 2480, 2852, 2936, 3565, 3670, 5704, 5872, 7130, 7340, 8441, 11377, 11408, 14260, 14680, 16882, 22754, 28520, 29360, 33764, 42205, 45508, 56885, 57040, 67528, 84410, 91016, 113770, 135056, 168820, 182032, 227540, 261671, 337640, 455080, 523342, 675280, 910160, 1046684, 1308355, 2093368, 2616710, 4186736, 5233420, 10466840, 20933680]

約数ペア:

[(1, 20933680), (2, 10466840), (4, 5233420), (5, 4186736), (8, 2616710), (10, 2093368), (16, 1308355), (20, 1046684), (23, 910160), (31, 675280), (40, 523342), (46, 455080), (62, 337640), (80, 261671), (92, 227540), (115, 182032), (124, 168820), (155, 135056), (184, 113770), (230, 91016), (248, 84410), (310, 67528), (367, 57040), (368, 56885), (460, 45508), (496, 42205), (620, 33764), (713, 29360), (734, 28520), (920, 22754), (1240, 16882), (1426, 14680), (1468, 14260), (1835, 11408), (1840, 11377), (2480, 8441), (2852, 7340), (2936, 7130), (3565, 5872), (3670, 5704)]