1605280

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 3870720

約数和(自身を除く): 2265440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 127, 158, 160, 254, 316, 395, 508, 632, 635, 790, 1016, 1264, 1270, 1580, 2032, 2528, 2540, 3160, 4064, 5080, 6320, 10033, 10160, 12640, 20066, 20320, 40132, 50165, 80264, 100330, 160528, 200660, 321056, 401320, 802640, 1605280]

約数ペア:

[(1, 1605280), (2, 802640), (4, 401320), (5, 321056), (8, 200660), (10, 160528), (16, 100330), (20, 80264), (32, 50165), (40, 40132), (79, 20320), (80, 20066), (127, 12640), (158, 10160), (160, 10033), (254, 6320), (316, 5080), (395, 4064), (508, 3160), (632, 2540), (635, 2528), (790, 2032), (1016, 1580), (1264, 1270)]