18220125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 64

約数和(自身を含む): 37859328

約数和(自身を除く): 19639203

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 125, 165, 175, 231, 275, 375, 385, 525, 631, 825, 875, 1155, 1375, 1893, 1925, 2625, 3155, 4125, 4417, 5775, 6941, 9465, 9625, 13251, 15775, 20823, 22085, 28875, 34705, 47325, 48587, 66255, 78875, 104115, 110425, 145761, 173525, 236625, 242935, 331275, 520575, 552125, 728805, 867625, 1214675, 1656375, 2602875, 3644025, 6073375, 18220125]

約数ペア:

[(1, 18220125), (3, 6073375), (5, 3644025), (7, 2602875), (11, 1656375), (15, 1214675), (21, 867625), (25, 728805), (33, 552125), (35, 520575), (55, 331275), (75, 242935), (77, 236625), (105, 173525), (125, 145761), (165, 110425), (175, 104115), (231, 78875), (275, 66255), (375, 48587), (385, 47325), (525, 34705), (631, 28875), (825, 22085), (875, 20823), (1155, 15775), (1375, 13251), (1893, 9625), (1925, 9465), (2625, 6941), (3155, 5775), (4125, 4417)]