129836720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1110

約数の個数: 80

約数和(自身を含む): 327916512

約数和(自身を除く): 198079792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 208, 260, 262, 520, 524, 655, 953, 1040, 1048, 1310, 1703, 1906, 2096, 2620, 3406, 3812, 4765, 5240, 6812, 7624, 8515, 9530, 10480, 12389, 13624, 15248, 17030, 19060, 24778, 27248, 34060, 38120, 49556, 61945, 68120, 76240, 99112, 123890, 124843, 136240, 198224, 247780, 249686, 495560, 499372, 624215, 991120, 998744, 1248430, 1622959, 1997488, 2496860, 3245918, 4993720, 6491836, 8114795, 9987440, 12983672, 16229590, 25967344, 32459180, 64918360, 129836720]

約数ペア:

[(1, 129836720), (2, 64918360), (4, 32459180), (5, 25967344), (8, 16229590), (10, 12983672), (13, 9987440), (16, 8114795), (20, 6491836), (26, 4993720), (40, 3245918), (52, 2496860), (65, 1997488), (80, 1622959), (104, 1248430), (130, 998744), (131, 991120), (208, 624215), (260, 499372), (262, 495560), (520, 249686), (524, 247780), (655, 198224), (953, 136240), (1040, 124843), (1048, 123890), (1310, 99112), (1703, 76240), (1906, 68120), (2096, 61945), (2620, 49556), (3406, 38120), (3812, 34060), (4765, 27248), (5240, 24778), (6812, 19060), (7624, 17030), (8515, 15248), (9530, 13624), (10480, 12389)]