18145725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 33247872

約数和(自身を除く): 15102147

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 75, 111, 185, 195, 325, 481, 503, 555, 925, 975, 1443, 1509, 2405, 2515, 2775, 6539, 7215, 7545, 12025, 12575, 18611, 19617, 32695, 36075, 37725, 55833, 93055, 98085, 163475, 241943, 279165, 465275, 490425, 725829, 1209715, 1395825, 3629145, 6048575, 18145725]

約数ペア:

[(1, 18145725), (3, 6048575), (5, 3629145), (13, 1395825), (15, 1209715), (25, 725829), (37, 490425), (39, 465275), (65, 279165), (75, 241943), (111, 163475), (185, 98085), (195, 93055), (325, 55833), (481, 37725), (503, 36075), (555, 32695), (925, 19617), (975, 18611), (1443, 12575), (1509, 12025), (2405, 7545), (2515, 7215), (2775, 6539)]