7290890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 14031360

約数和(自身を除く): 6740470

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 811, 899, 1622, 1798, 4055, 4495, 8110, 8990, 23519, 25141, 47038, 50282, 117595, 125705, 235190, 251410, 729089, 1458178, 3645445, 7290890]

約数ペア:

[(1, 7290890), (2, 3645445), (5, 1458178), (10, 729089), (29, 251410), (31, 235190), (58, 125705), (62, 117595), (145, 50282), (155, 47038), (290, 25141), (310, 23519), (811, 8990), (899, 8110), (1622, 4495), (1798, 4055)]