272806640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{55903}}^1$

素因数の和:55977

約数の個数: 40

約数和(自身を含む): 644684928

約数和(自身を除く): 371878288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 55903, 111806, 223612, 279515, 447224, 559030, 894448, 1118060, 2236120, 3410083, 4472240, 6820166, 13640332, 17050415, 27280664, 34100830, 54561328, 68201660, 136403320, 272806640]

約数ペア:

[(1, 272806640), (2, 136403320), (4, 68201660), (5, 54561328), (8, 34100830), (10, 27280664), (16, 17050415), (20, 13640332), (40, 6820166), (61, 4472240), (80, 3410083), (122, 2236120), (244, 1118060), (305, 894448), (488, 559030), (610, 447224), (976, 279515), (1220, 223612), (2440, 111806), (4880, 55903)]