381871640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{563}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 890127360

約数和(自身を除く): 508255720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 547, 563, 620, 1094, 1126, 1240, 2188, 2252, 2735, 2815, 4376, 4504, 5470, 5630, 10940, 11260, 16957, 17453, 21880, 22520, 33914, 34906, 67828, 69812, 84785, 87265, 135656, 139624, 169570, 174530, 307961, 339140, 349060, 615922, 678280, 698120, 1231844, 1539805, 2463688, 3079610, 6159220, 9546791, 12318440, 19093582, 38187164, 47733955, 76374328, 95467910, 190935820, 381871640]

約数ペア:

[(1, 381871640), (2, 190935820), (4, 95467910), (5, 76374328), (8, 47733955), (10, 38187164), (20, 19093582), (31, 12318440), (40, 9546791), (62, 6159220), (124, 3079610), (155, 2463688), (248, 1539805), (310, 1231844), (547, 698120), (563, 678280), (620, 615922), (1094, 349060), (1126, 339140), (1240, 307961), (2188, 174530), (2252, 169570), (2735, 139624), (2815, 135656), (4376, 87265), (4504, 84785), (5470, 69812), (5630, 67828), (10940, 34906), (11260, 33914), (16957, 22520), (17453, 21880)]