78876875

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1$

素因数の和:198

約数の個数: 60

約数和(自身を含む): 124647600

約数和(自身を除く): 45770725

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 125, 149, 175, 275, 385, 605, 625, 745, 847, 875, 1043, 1375, 1639, 1925, 3025, 3725, 4235, 4375, 5215, 6875, 8195, 9625, 11473, 15125, 18029, 18625, 21175, 26075, 40975, 48125, 57365, 75625, 90145, 93125, 105875, 126203, 130375, 204875, 286825, 450725, 529375, 631015, 651875, 1024375, 1434125, 2253625, 3155075, 7170625, 11268125, 15775375, 78876875]

約数ペア:

[(1, 78876875), (5, 15775375), (7, 11268125), (11, 7170625), (25, 3155075), (35, 2253625), (55, 1434125), (77, 1024375), (121, 651875), (125, 631015), (149, 529375), (175, 450725), (275, 286825), (385, 204875), (605, 130375), (625, 126203), (745, 105875), (847, 93125), (875, 90145), (1043, 75625), (1375, 57365), (1639, 48125), (1925, 40975), (3025, 26075), (3725, 21175), (4235, 18625), (4375, 18029), (5215, 15125), (6875, 11473), (8195, 9625)]