2780742625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 3809894400

約数和(自身を除く): 1029151775

約数列:

[1, 5, 19, 25, 31, 95, 125, 155, 179, 211, 475, 589, 775, 895, 1055, 2375, 2945, 3401, 3875, 4009, 4475, 5275, 5549, 6541, 14725, 17005, 20045, 22375, 26375, 27745, 32705, 37769, 73625, 85025, 100225, 105431, 124279, 138725, 163525, 188845, 425125, 501125, 527155, 621395, 693625, 717611, 817625, 944225, 1170839, 2635775, 3106975, 3588055, 4721125, 5854195, 13178875, 15534875, 17940275, 22245941, 29270975, 89701375, 111229705, 146354875, 556148525, 2780742625]

約数ペア:

[(1, 2780742625), (5, 556148525), (19, 146354875), (25, 111229705), (31, 89701375), (95, 29270975), (125, 22245941), (155, 17940275), (179, 15534875), (211, 13178875), (475, 5854195), (589, 4721125), (775, 3588055), (895, 3106975), (1055, 2635775), (2375, 1170839), (2945, 944225), (3401, 817625), (3875, 717611), (4009, 693625), (4475, 621395), (5275, 527155), (5549, 501125), (6541, 425125), (14725, 188845), (17005, 163525), (20045, 138725), (22375, 124279), (26375, 105431), (27745, 100225), (32705, 85025), (37769, 73625)]