77840625

素因数分解:

$3^1\times 5^5\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:89

約数の個数: 72

約数和(自身を含む): 142865856

約数和(自身を除く): 65025231

約数列:

[1, 3, 5, 15, 19, 23, 25, 57, 69, 75, 95, 115, 125, 285, 345, 361, 375, 437, 475, 575, 625, 1083, 1311, 1425, 1725, 1805, 1875, 2185, 2375, 2875, 3125, 5415, 6555, 7125, 8303, 8625, 9025, 9375, 10925, 11875, 14375, 24909, 27075, 32775, 35625, 41515, 43125, 45125, 54625, 59375, 71875, 124545, 135375, 163875, 178125, 207575, 215625, 225625, 273125, 622725, 676875, 819375, 1037875, 1128125, 1365625, 3113625, 3384375, 4096875, 5189375, 15568125, 25946875, 77840625]

約数ペア:

[(1, 77840625), (3, 25946875), (5, 15568125), (15, 5189375), (19, 4096875), (23, 3384375), (25, 3113625), (57, 1365625), (69, 1128125), (75, 1037875), (95, 819375), (115, 676875), (125, 622725), (285, 273125), (345, 225625), (361, 215625), (375, 207575), (437, 178125), (475, 163875), (575, 135375), (625, 124545), (1083, 71875), (1311, 59375), (1425, 54625), (1725, 45125), (1805, 43125), (1875, 41515), (2185, 35625), (2375, 32775), (2875, 27075), (3125, 24909), (5415, 14375), (6555, 11875), (7125, 10925), (8303, 9375), (8625, 9025)]