7180220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 16036608

約数和(自身を除く): 8856388

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 313, 370, 620, 626, 740, 1147, 1252, 1565, 2294, 3130, 4588, 5735, 6260, 9703, 11470, 11581, 19406, 22940, 23162, 38812, 46324, 48515, 57905, 97030, 115810, 194060, 231620, 359011, 718022, 1436044, 1795055, 3590110, 7180220]

約数ペア:

[(1, 7180220), (2, 3590110), (4, 1795055), (5, 1436044), (10, 718022), (20, 359011), (31, 231620), (37, 194060), (62, 115810), (74, 97030), (124, 57905), (148, 48515), (155, 46324), (185, 38812), (310, 23162), (313, 22940), (370, 19406), (620, 11581), (626, 11470), (740, 9703), (1147, 6260), (1252, 5735), (1565, 4588), (2294, 3130)]