18190125

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:100

約数の個数: 96

約数和(自身を含む): 36990720

約数和(自身を除く): 18800595

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 37, 45, 57, 69, 75, 95, 111, 115, 125, 171, 185, 207, 225, 285, 333, 345, 375, 437, 475, 555, 575, 703, 851, 855, 925, 1035, 1125, 1311, 1425, 1665, 1725, 2109, 2185, 2375, 2553, 2775, 2875, 3515, 3933, 4255, 4275, 4625, 5175, 6327, 6555, 7125, 7659, 8325, 8625, 10545, 10925, 12765, 13875, 16169, 17575, 19665, 21275, 21375, 25875, 31635, 32775, 38295, 41625, 48507, 52725, 54625, 63825, 80845, 87875, 98325, 106375, 145521, 158175, 163875, 191475, 242535, 263625, 319125, 404225, 491625, 727605, 790875, 957375, 1212675, 2021125, 3638025, 6063375, 18190125]

約数ペア:

[(1, 18190125), (3, 6063375), (5, 3638025), (9, 2021125), (15, 1212675), (19, 957375), (23, 790875), (25, 727605), (37, 491625), (45, 404225), (57, 319125), (69, 263625), (75, 242535), (95, 191475), (111, 163875), (115, 158175), (125, 145521), (171, 106375), (185, 98325), (207, 87875), (225, 80845), (285, 63825), (333, 54625), (345, 52725), (375, 48507), (437, 41625), (475, 38295), (555, 32775), (575, 31635), (703, 25875), (851, 21375), (855, 21275), (925, 19665), (1035, 17575), (1125, 16169), (1311, 13875), (1425, 12765), (1665, 10925), (1725, 10545), (2109, 8625), (2185, 8325), (2375, 7659), (2553, 7125), (2775, 6555), (2875, 6327), (3515, 5175), (3933, 4625), (4255, 4275)]