16490168440

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{7933}}^1$

素因数の和:8432

約数の個数: 64

約数和(自身を含む): 37456731360

約数和(自身を除く): 20966562920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 331, 628, 662, 785, 1256, 1324, 1570, 1655, 2648, 3140, 3310, 6280, 6620, 7933, 13240, 15866, 31732, 39665, 51967, 63464, 79330, 103934, 158660, 207868, 259835, 317320, 415736, 519670, 1039340, 1245481, 2078680, 2490962, 2625823, 4981924, 5251646, 6227405, 9963848, 10503292, 12454810, 13129115, 21006584, 24909620, 26258230, 49819240, 52516460, 105032920, 412254211, 824508422, 1649016844, 2061271055, 3298033688, 4122542110, 8245084220, 16490168440]

約数ペア:

[(1, 16490168440), (2, 8245084220), (4, 4122542110), (5, 3298033688), (8, 2061271055), (10, 1649016844), (20, 824508422), (40, 412254211), (157, 105032920), (314, 52516460), (331, 49819240), (628, 26258230), (662, 24909620), (785, 21006584), (1256, 13129115), (1324, 12454810), (1570, 10503292), (1655, 9963848), (2648, 6227405), (3140, 5251646), (3310, 4981924), (6280, 2625823), (6620, 2490962), (7933, 2078680), (13240, 1245481), (15866, 1039340), (31732, 519670), (39665, 415736), (51967, 317320), (63464, 259835), (79330, 207868), (103934, 158660)]