31870575

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 63448320

約数和(自身を除く): 31577745

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 79, 99, 163, 165, 225, 237, 275, 395, 489, 495, 711, 815, 825, 869, 1185, 1467, 1793, 1975, 2445, 2475, 2607, 3555, 4075, 4345, 5379, 5925, 7335, 7821, 8965, 12225, 12877, 13035, 16137, 17775, 21725, 26895, 36675, 38631, 39105, 44825, 64385, 65175, 80685, 115893, 134475, 141647, 193155, 195525, 321925, 403425, 424941, 579465, 708235, 965775, 1274823, 2124705, 2897325, 3541175, 6374115, 10623525, 31870575]

約数ペア:

[(1, 31870575), (3, 10623525), (5, 6374115), (9, 3541175), (11, 2897325), (15, 2124705), (25, 1274823), (33, 965775), (45, 708235), (55, 579465), (75, 424941), (79, 403425), (99, 321925), (163, 195525), (165, 193155), (225, 141647), (237, 134475), (275, 115893), (395, 80685), (489, 65175), (495, 64385), (711, 44825), (815, 39105), (825, 38631), (869, 36675), (1185, 26895), (1467, 21725), (1793, 17775), (1975, 16137), (2445, 13035), (2475, 12877), (2607, 12225), (3555, 8965), (4075, 7821), (4345, 7335), (5379, 5925)]