2028996820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{7481}}^1$

素因数の和:7752

約数の個数: 48

約数和(自身を含む): 4344109056

約数和(自身を除く): 2315112236

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 191, 284, 355, 382, 710, 764, 955, 1420, 1910, 3820, 7481, 13561, 14962, 27122, 29924, 37405, 54244, 67805, 74810, 135610, 149620, 271220, 531151, 1062302, 1428871, 2124604, 2655755, 2857742, 5311510, 5715484, 7144355, 10623020, 14288710, 28577420, 101449841, 202899682, 405799364, 507249205, 1014498410, 2028996820]

約数ペア:

[(1, 2028996820), (2, 1014498410), (4, 507249205), (5, 405799364), (10, 202899682), (20, 101449841), (71, 28577420), (142, 14288710), (191, 10623020), (284, 7144355), (355, 5715484), (382, 5311510), (710, 2857742), (764, 2655755), (955, 2124604), (1420, 1428871), (1910, 1062302), (3820, 531151), (7481, 271220), (13561, 149620), (14962, 135610), (27122, 74810), (29924, 67805), (37405, 54244)]