40749220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 87994368

約数和(自身を除く): 47245148

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 263, 305, 508, 526, 610, 635, 1052, 1220, 1270, 1315, 2540, 2630, 5260, 7747, 15494, 16043, 30988, 32086, 33401, 38735, 64172, 66802, 77470, 80215, 133604, 154940, 160430, 167005, 320860, 334010, 668020, 2037461, 4074922, 8149844, 10187305, 20374610, 40749220]

約数ペア:

[(1, 40749220), (2, 20374610), (4, 10187305), (5, 8149844), (10, 4074922), (20, 2037461), (61, 668020), (122, 334010), (127, 320860), (244, 167005), (254, 160430), (263, 154940), (305, 133604), (508, 80215), (526, 77470), (610, 66802), (635, 64172), (1052, 38735), (1220, 33401), (1270, 32086), (1315, 30988), (2540, 16043), (2630, 15494), (5260, 7747)]