51664640

素因数分解:

$2^8\times 5^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 124994688

約数和(自身を除く): 73330048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 223, 256, 320, 362, 446, 640, 724, 892, 905, 1115, 1280, 1448, 1784, 1810, 2230, 2896, 3568, 3620, 4460, 5792, 7136, 7240, 8920, 11584, 14272, 14480, 17840, 23168, 28544, 28960, 35680, 40363, 46336, 57088, 57920, 71360, 80726, 115840, 142720, 161452, 201815, 231680, 285440, 322904, 403630, 645808, 807260, 1291616, 1614520, 2583232, 3229040, 5166464, 6458080, 10332928, 12916160, 25832320, 51664640]

約数ペア:

[(1, 51664640), (2, 25832320), (4, 12916160), (5, 10332928), (8, 6458080), (10, 5166464), (16, 3229040), (20, 2583232), (32, 1614520), (40, 1291616), (64, 807260), (80, 645808), (128, 403630), (160, 322904), (181, 285440), (223, 231680), (256, 201815), (320, 161452), (362, 142720), (446, 115840), (640, 80726), (724, 71360), (892, 57920), (905, 57088), (1115, 46336), (1280, 40363), (1448, 35680), (1784, 28960), (1810, 28544), (2230, 23168), (2896, 17840), (3568, 14480), (3620, 14272), (4460, 11584), (5792, 8920), (7136, 7240)]