2471750125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 3463649280

約数和(自身を除く): 991899155

約数列:

[1, 5, 13, 25, 31, 65, 125, 139, 155, 325, 353, 403, 695, 775, 1625, 1765, 1807, 2015, 3475, 3875, 4309, 4589, 8825, 9035, 10075, 10943, 17375, 21545, 22945, 44125, 45175, 49067, 50375, 54715, 56017, 107725, 114725, 142259, 225875, 245335, 273575, 280085, 538625, 573625, 637871, 711295, 1226675, 1367875, 1400425, 1521077, 3189355, 3556475, 6133375, 7002125, 7605385, 15946775, 17782375, 19774001, 38026925, 79733875, 98870005, 190134625, 494350025, 2471750125]

約数ペア:

[(1, 2471750125), (5, 494350025), (13, 190134625), (25, 98870005), (31, 79733875), (65, 38026925), (125, 19774001), (139, 17782375), (155, 15946775), (325, 7605385), (353, 7002125), (403, 6133375), (695, 3556475), (775, 3189355), (1625, 1521077), (1765, 1400425), (1807, 1367875), (2015, 1226675), (3475, 711295), (3875, 637871), (4309, 573625), (4589, 538625), (8825, 280085), (9035, 273575), (10075, 245335), (10943, 225875), (17375, 142259), (21545, 114725), (22945, 107725), (44125, 56017), (45175, 54715), (49067, 50375)]