21167654375

素因数分解:

$5^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{911}}^1$

素因数の和:1098

約数の個数: 80

約数和(自身を含む): 31180419072

約数和(自身を除く): 10012764697

約数列:

[1, 5, 7, 25, 35, 47, 113, 125, 175, 235, 329, 565, 625, 791, 875, 911, 1175, 1645, 2825, 3955, 4375, 4555, 5311, 5875, 6377, 8225, 14125, 19775, 22775, 26555, 29375, 31885, 37177, 41125, 42817, 70625, 98875, 102943, 113875, 132775, 159425, 185885, 205625, 214085, 299719, 494375, 514715, 569375, 663875, 720601, 797125, 929425, 1070425, 1498595, 2573575, 3319375, 3603005, 3985625, 4647125, 4838321, 5352125, 7492975, 12867875, 18015025, 23235625, 24191605, 26760625, 33868247, 37464875, 64339375, 90075125, 120958025, 169341235, 187324375, 450375625, 604790125, 846706175, 3023950625, 4233530875, 21167654375]

約数ペア:

[(1, 21167654375), (5, 4233530875), (7, 3023950625), (25, 846706175), (35, 604790125), (47, 450375625), (113, 187324375), (125, 169341235), (175, 120958025), (235, 90075125), (329, 64339375), (565, 37464875), (625, 33868247), (791, 26760625), (875, 24191605), (911, 23235625), (1175, 18015025), (1645, 12867875), (2825, 7492975), (3955, 5352125), (4375, 4838321), (4555, 4647125), (5311, 3985625), (5875, 3603005), (6377, 3319375), (8225, 2573575), (14125, 1498595), (19775, 1070425), (22775, 929425), (26555, 797125), (29375, 720601), (31885, 663875), (37177, 569375), (41125, 514715), (42817, 494375), (70625, 299719), (98875, 214085), (102943, 205625), (113875, 185885), (132775, 159425)]