20196016875

素因数分解:

$3^3\times 5^4\times {\mathrm{29}}^1\times {\mathrm{41269}}^1$

素因数の和:41327

約数の個数: 80

約数和(自身を含む): 38678244000

約数和(自身を除く): 18482227125

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 125, 135, 145, 225, 261, 375, 435, 625, 675, 725, 783, 1125, 1305, 1875, 2175, 3375, 3625, 3915, 5625, 6525, 10875, 16875, 18125, 19575, 32625, 41269, 54375, 97875, 123807, 163125, 206345, 371421, 489375, 619035, 1031725, 1114263, 1196801, 1857105, 3095175, 3590403, 5158625, 5571315, 5984005, 9285525, 10771209, 15475875, 17952015, 25793125, 27856575, 29920025, 32313627, 46427625, 53856045, 77379375, 89760075, 139282875, 149600125, 161568135, 232138125, 269280225, 448800375, 696414375, 748000625, 807840675, 1346401125, 2244001875, 4039203375, 6732005625, 20196016875]

約数ペア:

[(1, 20196016875), (3, 6732005625), (5, 4039203375), (9, 2244001875), (15, 1346401125), (25, 807840675), (27, 748000625), (29, 696414375), (45, 448800375), (75, 269280225), (87, 232138125), (125, 161568135), (135, 149600125), (145, 139282875), (225, 89760075), (261, 77379375), (375, 53856045), (435, 46427625), (625, 32313627), (675, 29920025), (725, 27856575), (783, 25793125), (1125, 17952015), (1305, 15475875), (1875, 10771209), (2175, 9285525), (3375, 5984005), (3625, 5571315), (3915, 5158625), (5625, 3590403), (6525, 3095175), (10875, 1857105), (16875, 1196801), (18125, 1114263), (19575, 1031725), (32625, 619035), (41269, 489375), (54375, 371421), (97875, 206345), (123807, 163125)]