20071125

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 39187200

約数和(自身を除く): 19116075

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 313, 375, 475, 513, 675, 855, 939, 1125, 1425, 1565, 2375, 2565, 2817, 3375, 4275, 4695, 5947, 7125, 7825, 8451, 12825, 14085, 17841, 21375, 23475, 29735, 39125, 42255, 53523, 64125, 70425, 89205, 117375, 148675, 160569, 211275, 267615, 352125, 446025, 743375, 802845, 1056375, 1338075, 2230125, 4014225, 6690375, 20071125]

約数ペア:

[(1, 20071125), (3, 6690375), (5, 4014225), (9, 2230125), (15, 1338075), (19, 1056375), (25, 802845), (27, 743375), (45, 446025), (57, 352125), (75, 267615), (95, 211275), (125, 160569), (135, 148675), (171, 117375), (225, 89205), (285, 70425), (313, 64125), (375, 53523), (475, 42255), (513, 39125), (675, 29735), (855, 23475), (939, 21375), (1125, 17841), (1425, 14085), (1565, 12825), (2375, 8451), (2565, 7825), (2817, 7125), (3375, 5947), (4275, 4695)]