28504580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6449}}^1$

素因数の和:6488

約数の個数: 48

約数和(自身を含む): 68266800

約数和(自身を除く): 39762220

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 6449, 12898, 25796, 32245, 64490, 83837, 109633, 128980, 167674, 219266, 335348, 419185, 438532, 548165, 838370, 1096330, 1425229, 1676740, 2192660, 2850458, 5700916, 7126145, 14252290, 28504580]

約数ペア:

[(1, 28504580), (2, 14252290), (4, 7126145), (5, 5700916), (10, 2850458), (13, 2192660), (17, 1676740), (20, 1425229), (26, 1096330), (34, 838370), (52, 548165), (65, 438532), (68, 419185), (85, 335348), (130, 219266), (170, 167674), (221, 128980), (260, 109633), (340, 83837), (442, 64490), (884, 32245), (1105, 25796), (2210, 12898), (4420, 6449)]