18480340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 22613804

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 727, 820, 1271, 1454, 2542, 2908, 3635, 5084, 6355, 7270, 12710, 14540, 22537, 25420, 29807, 45074, 59614, 90148, 112685, 119228, 149035, 225370, 298070, 450740, 596140, 924017, 1848034, 3696068, 4620085, 9240170, 18480340]

約数ペア:

[(1, 18480340), (2, 9240170), (4, 4620085), (5, 3696068), (10, 1848034), (20, 924017), (31, 596140), (41, 450740), (62, 298070), (82, 225370), (124, 149035), (155, 119228), (164, 112685), (205, 90148), (310, 59614), (410, 45074), (620, 29807), (727, 25420), (820, 22537), (1271, 14540), (1454, 12710), (2542, 7270), (2908, 6355), (3635, 5084)]