19651125

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 36691200

約数和(自身を除く): 17040075

約数列:

[1, 3, 5, 13, 15, 25, 29, 39, 65, 75, 87, 125, 139, 145, 195, 325, 375, 377, 417, 435, 695, 725, 975, 1131, 1625, 1807, 1885, 2085, 2175, 3475, 3625, 4031, 4875, 5421, 5655, 9035, 9425, 10425, 10875, 12093, 17375, 20155, 27105, 28275, 45175, 47125, 52125, 52403, 60465, 100775, 135525, 141375, 157209, 225875, 262015, 302325, 503875, 677625, 786045, 1310075, 1511625, 3930225, 6550375, 19651125]

約数ペア:

[(1, 19651125), (3, 6550375), (5, 3930225), (13, 1511625), (15, 1310075), (25, 786045), (29, 677625), (39, 503875), (65, 302325), (75, 262015), (87, 225875), (125, 157209), (139, 141375), (145, 135525), (195, 100775), (325, 60465), (375, 52403), (377, 52125), (417, 47125), (435, 45175), (695, 28275), (725, 27105), (975, 20155), (1131, 17375), (1625, 12093), (1807, 10875), (1885, 10425), (2085, 9425), (2175, 9035), (3475, 5655), (3625, 5421), (4031, 4875)]