39124840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^2$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 94214610

約数和(自身を除く): 55089770

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 529, 860, 920, 989, 1058, 1720, 1849, 1978, 2116, 2645, 3698, 3956, 4232, 4945, 5290, 7396, 7912, 9245, 9890, 10580, 14792, 18490, 19780, 21160, 22747, 36980, 39560, 42527, 45494, 73960, 85054, 90988, 113735, 170108, 181976, 212635, 227470, 340216, 425270, 454940, 850540, 909880, 978121, 1701080, 1956242, 3912484, 4890605, 7824968, 9781210, 19562420, 39124840]

約数ペア:

[(1, 39124840), (2, 19562420), (4, 9781210), (5, 7824968), (8, 4890605), (10, 3912484), (20, 1956242), (23, 1701080), (40, 978121), (43, 909880), (46, 850540), (86, 454940), (92, 425270), (115, 340216), (172, 227470), (184, 212635), (215, 181976), (230, 170108), (344, 113735), (430, 90988), (460, 85054), (529, 73960), (860, 45494), (920, 42527), (989, 39560), (1058, 36980), (1720, 22747), (1849, 21160), (1978, 19780), (2116, 18490), (2645, 14792), (3698, 10580), (3956, 9890), (4232, 9245), (4945, 7912), (5290, 7396)]