19759875

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 35942400

約数和(自身を除く): 16182525

約数列:

[1, 3, 5, 15, 23, 25, 29, 69, 75, 79, 87, 115, 125, 145, 237, 345, 375, 395, 435, 575, 667, 725, 1185, 1725, 1817, 1975, 2001, 2175, 2291, 2875, 3335, 3625, 5451, 5925, 6873, 8625, 9085, 9875, 10005, 10875, 11455, 16675, 27255, 29625, 34365, 45425, 50025, 52693, 57275, 83375, 136275, 158079, 171825, 227125, 250125, 263465, 286375, 681375, 790395, 859125, 1317325, 3951975, 6586625, 19759875]

約数ペア:

[(1, 19759875), (3, 6586625), (5, 3951975), (15, 1317325), (23, 859125), (25, 790395), (29, 681375), (69, 286375), (75, 263465), (79, 250125), (87, 227125), (115, 171825), (125, 158079), (145, 136275), (237, 83375), (345, 57275), (375, 52693), (395, 50025), (435, 45425), (575, 34365), (667, 29625), (725, 27255), (1185, 16675), (1725, 11455), (1817, 10875), (1975, 10005), (2001, 9875), (2175, 9085), (2291, 8625), (2875, 6873), (3335, 5925), (3625, 5451)]