128210775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^2$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 266066304

約数和(自身を除く): 137855529

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 149, 165, 175, 231, 275, 385, 447, 525, 745, 825, 1043, 1155, 1639, 1925, 2235, 3129, 3725, 4917, 5215, 5775, 8195, 11175, 11473, 15645, 22201, 24585, 26075, 34419, 40975, 57365, 66603, 78225, 111005, 122925, 155407, 172095, 244211, 286825, 333015, 466221, 555025, 732633, 777035, 860475, 1221055, 1665075, 1709477, 2331105, 3663165, 3885175, 5128431, 6105275, 8547385, 11655525, 18315825, 25642155, 42736925, 128210775]

約数ペア:

[(1, 128210775), (3, 42736925), (5, 25642155), (7, 18315825), (11, 11655525), (15, 8547385), (21, 6105275), (25, 5128431), (33, 3885175), (35, 3663165), (55, 2331105), (75, 1709477), (77, 1665075), (105, 1221055), (149, 860475), (165, 777035), (175, 732633), (231, 555025), (275, 466221), (385, 333015), (447, 286825), (525, 244211), (745, 172095), (825, 155407), (1043, 122925), (1155, 111005), (1639, 78225), (1925, 66603), (2235, 57365), (3129, 40975), (3725, 34419), (4917, 26075), (5215, 24585), (5775, 22201), (8195, 15645), (11175, 11473)]