423980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 48

約数和(自身を含む): 997920

約数和(自身を除く): 573940

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 43, 58, 68, 85, 86, 116, 145, 170, 172, 215, 290, 340, 430, 493, 580, 731, 860, 986, 1247, 1462, 1972, 2465, 2494, 2924, 3655, 4930, 4988, 6235, 7310, 9860, 12470, 14620, 21199, 24940, 42398, 84796, 105995, 211990, 423980]

約数ペア:

[(1, 423980), (2, 211990), (4, 105995), (5, 84796), (10, 42398), (17, 24940), (20, 21199), (29, 14620), (34, 12470), (43, 9860), (58, 7310), (68, 6235), (85, 4988), (86, 4930), (116, 3655), (145, 2924), (170, 2494), (172, 2465), (215, 1972), (290, 1462), (340, 1247), (430, 986), (493, 860), (580, 731)]