77951120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4409}}^1$

素因数の和:4452

約数の個数: 80

約数和(自身を含む): 206705520

約数和(自身を除く): 128754400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 3536, 4409, 4420, 8818, 8840, 17636, 17680, 22045, 35272, 44090, 57317, 70544, 74953, 88180, 114634, 149906, 176360, 229268, 286585, 299812, 352720, 374765, 458536, 573170, 599624, 749530, 917072, 974389, 1146340, 1199248, 1499060, 1948778, 2292680, 2998120, 3897556, 4585360, 4871945, 5996240, 7795112, 9743890, 15590224, 19487780, 38975560, 77951120]

約数ペア:

[(1, 77951120), (2, 38975560), (4, 19487780), (5, 15590224), (8, 9743890), (10, 7795112), (13, 5996240), (16, 4871945), (17, 4585360), (20, 3897556), (26, 2998120), (34, 2292680), (40, 1948778), (52, 1499060), (65, 1199248), (68, 1146340), (80, 974389), (85, 917072), (104, 749530), (130, 599624), (136, 573170), (170, 458536), (208, 374765), (221, 352720), (260, 299812), (272, 286585), (340, 229268), (442, 176360), (520, 149906), (680, 114634), (884, 88180), (1040, 74953), (1105, 70544), (1360, 57317), (1768, 44090), (2210, 35272), (3536, 22045), (4409, 17680), (4420, 17636), (8818, 8840)]