640020264

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89189}}^1$

素因数の和:89234

約数の個数: 64

約数和(自身を含む): 1798070400

約数和(自身を除く): 1158050136

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 39, 46, 52, 69, 78, 92, 104, 138, 156, 184, 276, 299, 312, 552, 598, 897, 1196, 1794, 2392, 3588, 7176, 89189, 178378, 267567, 356756, 535134, 713512, 1070268, 1159457, 2051347, 2140536, 2318914, 3478371, 4102694, 4637828, 6154041, 6956742, 8205388, 9275656, 12308082, 13913484, 16410776, 24616164, 26667511, 27826968, 49232328, 53335022, 80002533, 106670044, 160005066, 213340088, 320010132, 640020264]

約数ペア:

[(1, 640020264), (2, 320010132), (3, 213340088), (4, 160005066), (6, 106670044), (8, 80002533), (12, 53335022), (13, 49232328), (23, 27826968), (24, 26667511), (26, 24616164), (39, 16410776), (46, 13913484), (52, 12308082), (69, 9275656), (78, 8205388), (92, 6956742), (104, 6154041), (138, 4637828), (156, 4102694), (184, 3478371), (276, 2318914), (299, 2140536), (312, 2051347), (552, 1159457), (598, 1070268), (897, 713512), (1196, 535134), (1794, 356756), (2392, 267567), (3588, 178378), (7176, 89189)]