20107425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 16640223

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 195, 205, 325, 503, 533, 615, 975, 1025, 1509, 1599, 2515, 2665, 3075, 6539, 7545, 7995, 12575, 13325, 19617, 20623, 32695, 37725, 39975, 61869, 98085, 103115, 163475, 268099, 309345, 490425, 515575, 804297, 1340495, 1546725, 4021485, 6702475, 20107425]

約数ペア:

[(1, 20107425), (3, 6702475), (5, 4021485), (13, 1546725), (15, 1340495), (25, 804297), (39, 515575), (41, 490425), (65, 309345), (75, 268099), (123, 163475), (195, 103115), (205, 98085), (325, 61869), (503, 39975), (533, 37725), (615, 32695), (975, 20623), (1025, 19617), (1509, 13325), (1599, 12575), (2515, 7995), (2665, 7545), (3075, 6539)]