18303688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 39816000

約数和(自身を除く): 21512312

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 59, 76, 104, 118, 152, 157, 236, 247, 314, 472, 494, 628, 767, 988, 1121, 1256, 1534, 1976, 2041, 2242, 2983, 3068, 4082, 4484, 5966, 6136, 8164, 8968, 9263, 11932, 14573, 16328, 18526, 23864, 29146, 37052, 38779, 58292, 74104, 77558, 116584, 120419, 155116, 175997, 240838, 310232, 351994, 481676, 703988, 963352, 1407976, 2287961, 4575922, 9151844, 18303688]

約数ペア:

[(1, 18303688), (2, 9151844), (4, 4575922), (8, 2287961), (13, 1407976), (19, 963352), (26, 703988), (38, 481676), (52, 351994), (59, 310232), (76, 240838), (104, 175997), (118, 155116), (152, 120419), (157, 116584), (236, 77558), (247, 74104), (314, 58292), (472, 38779), (494, 37052), (628, 29146), (767, 23864), (988, 18526), (1121, 16328), (1256, 14573), (1534, 11932), (1976, 9263), (2041, 8968), (2242, 8164), (2983, 6136), (3068, 5966), (4082, 4484)]