919920625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 1338321600

約数和(自身を除く): 418400975

約数列:

[1, 5, 13, 19, 25, 59, 65, 95, 101, 125, 247, 295, 325, 475, 505, 625, 767, 1121, 1235, 1313, 1475, 1625, 1919, 2375, 2525, 3835, 5605, 5959, 6175, 6565, 7375, 8125, 9595, 11875, 12625, 14573, 19175, 24947, 28025, 29795, 30875, 32825, 36875, 47975, 63125, 72865, 77467, 95875, 113221, 124735, 140125, 148975, 154375, 164125, 239875, 364325, 387335, 479375, 566105, 623675, 700625, 744875, 820625, 1199375, 1471873, 1821625, 1936675, 2830525, 3118375, 3724375, 7359365, 9108125, 9683375, 14152625, 15591875, 36796825, 48416875, 70763125, 183984125, 919920625]

約数ペア:

[(1, 919920625), (5, 183984125), (13, 70763125), (19, 48416875), (25, 36796825), (59, 15591875), (65, 14152625), (95, 9683375), (101, 9108125), (125, 7359365), (247, 3724375), (295, 3118375), (325, 2830525), (475, 1936675), (505, 1821625), (625, 1471873), (767, 1199375), (1121, 820625), (1235, 744875), (1313, 700625), (1475, 623675), (1625, 566105), (1919, 479375), (2375, 387335), (2525, 364325), (3835, 239875), (5605, 164125), (5959, 154375), (6175, 148975), (6565, 140125), (7375, 124735), (8125, 113221), (9595, 95875), (11875, 77467), (12625, 72865), (14573, 63125), (19175, 47975), (24947, 36875), (28025, 32825), (29795, 30875)]