40640392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 87595200

約数和(自身を除く): 46954808

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 131, 152, 157, 247, 262, 314, 494, 524, 628, 988, 1048, 1256, 1703, 1976, 2041, 2489, 2983, 3406, 4082, 4978, 5966, 6812, 8164, 9956, 11932, 13624, 16328, 19912, 20567, 23864, 32357, 38779, 41134, 64714, 77558, 82268, 129428, 155116, 164536, 258856, 267371, 310232, 390773, 534742, 781546, 1069484, 1563092, 2138968, 3126184, 5080049, 10160098, 20320196, 40640392]

約数ペア:

[(1, 40640392), (2, 20320196), (4, 10160098), (8, 5080049), (13, 3126184), (19, 2138968), (26, 1563092), (38, 1069484), (52, 781546), (76, 534742), (104, 390773), (131, 310232), (152, 267371), (157, 258856), (247, 164536), (262, 155116), (314, 129428), (494, 82268), (524, 77558), (628, 64714), (988, 41134), (1048, 38779), (1256, 32357), (1703, 23864), (1976, 20567), (2041, 19912), (2489, 16328), (2983, 13624), (3406, 11932), (4082, 9956), (4978, 8164), (5966, 6812)]