749520020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{4933}}^1$

素因数の和:5120

約数の個数: 48

約数和(自身を含む): 1611404928

約数和(自身を除く): 861884908

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 142, 214, 284, 355, 428, 535, 710, 1070, 1420, 2140, 4933, 7597, 9866, 15194, 19732, 24665, 30388, 37985, 49330, 75970, 98660, 151940, 350243, 527831, 700486, 1055662, 1400972, 1751215, 2111324, 2639155, 3502430, 5278310, 7004860, 10556620, 37476001, 74952002, 149904004, 187380005, 374760010, 749520020]

約数ペア:

[(1, 749520020), (2, 374760010), (4, 187380005), (5, 149904004), (10, 74952002), (20, 37476001), (71, 10556620), (107, 7004860), (142, 5278310), (214, 3502430), (284, 2639155), (355, 2111324), (428, 1751215), (535, 1400972), (710, 1055662), (1070, 700486), (1420, 527831), (2140, 350243), (4933, 151940), (7597, 98660), (9866, 75970), (15194, 49330), (19732, 37985), (24665, 30388)]