619979440

素因数分解:

$2^4\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{4933}}^1$

素因数の和:6517

約数の個数: 40

約数和(自身を含む): 1442662128

約数和(自身を除く): 822682688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1571, 3142, 4933, 6284, 7855, 9866, 12568, 15710, 19732, 24665, 25136, 31420, 39464, 49330, 62840, 78928, 98660, 125680, 197320, 394640, 7749743, 15499486, 30998972, 38748715, 61997944, 77497430, 123995888, 154994860, 309989720, 619979440]

約数ペア:

[(1, 619979440), (2, 309989720), (4, 154994860), (5, 123995888), (8, 77497430), (10, 61997944), (16, 38748715), (20, 30998972), (40, 15499486), (80, 7749743), (1571, 394640), (3142, 197320), (4933, 125680), (6284, 98660), (7855, 78928), (9866, 62840), (12568, 49330), (15710, 39464), (19732, 31420), (24665, 25136)]