128216025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 264935424

約数和(自身を除く): 136719399

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 127, 175, 225, 315, 381, 525, 635, 641, 889, 1143, 1575, 1905, 1923, 2667, 3175, 3205, 4445, 4487, 5715, 5769, 8001, 9525, 9615, 13335, 13461, 16025, 22225, 22435, 28575, 28845, 40005, 40383, 48075, 66675, 67305, 81407, 112175, 144225, 200025, 201915, 244221, 336525, 407035, 569849, 732663, 1009575, 1221105, 1709547, 2035175, 2849245, 3663315, 5128641, 6105525, 8547735, 14246225, 18316575, 25643205, 42738675, 128216025]

約数ペア:

[(1, 128216025), (3, 42738675), (5, 25643205), (7, 18316575), (9, 14246225), (15, 8547735), (21, 6105525), (25, 5128641), (35, 3663315), (45, 2849245), (63, 2035175), (75, 1709547), (105, 1221105), (127, 1009575), (175, 732663), (225, 569849), (315, 407035), (381, 336525), (525, 244221), (635, 201915), (641, 200025), (889, 144225), (1143, 112175), (1575, 81407), (1905, 67305), (1923, 66675), (2667, 48075), (3175, 40383), (3205, 40005), (4445, 28845), (4487, 28575), (5715, 22435), (5769, 22225), (8001, 16025), (9525, 13461), (9615, 13335)]