212781625

素因数分解:

$5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 322882560

約数和(自身を除く): 110100935

約数列:

[1, 5, 7, 23, 25, 35, 97, 109, 115, 125, 161, 175, 485, 545, 575, 679, 763, 805, 875, 2231, 2425, 2507, 2725, 2875, 3395, 3815, 4025, 10573, 11155, 12125, 12535, 13625, 15617, 16975, 17549, 19075, 20125, 52865, 55775, 62675, 74011, 78085, 84875, 87745, 95375, 243179, 264325, 278875, 313375, 370055, 390425, 438725, 1215895, 1321625, 1702253, 1850275, 1952125, 2193625, 6079475, 8511265, 9251375, 30397375, 42556325, 212781625]

約数ペア:

[(1, 212781625), (5, 42556325), (7, 30397375), (23, 9251375), (25, 8511265), (35, 6079475), (97, 2193625), (109, 1952125), (115, 1850275), (125, 1702253), (161, 1321625), (175, 1215895), (485, 438725), (545, 390425), (575, 370055), (679, 313375), (763, 278875), (805, 264325), (875, 243179), (2231, 95375), (2425, 87745), (2507, 84875), (2725, 78085), (2875, 74011), (3395, 62675), (3815, 55775), (4025, 52865), (10573, 20125), (11155, 19075), (12125, 17549), (12535, 16975), (13625, 15617)]