19885240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29243}}^1$

素因数の和:29271

約数の個数: 32

約数和(自身を含む): 47375280

約数和(自身を除く): 27490040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29243, 58486, 116972, 146215, 233944, 292430, 497131, 584860, 994262, 1169720, 1988524, 2485655, 3977048, 4971310, 9942620, 19885240]

約数ペア:

[(1, 19885240), (2, 9942620), (4, 4971310), (5, 3977048), (8, 2485655), (10, 1988524), (17, 1169720), (20, 994262), (34, 584860), (40, 497131), (68, 292430), (85, 233944), (136, 146215), (170, 116972), (340, 58486), (680, 29243)]