64409020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1297}}^1$

素因数の和:1510

約数の個数: 48

約数和(自身を含む): 146539008

約数和(自身を除く): 82129988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 191, 260, 382, 764, 955, 1297, 1910, 2483, 2594, 3820, 4966, 5188, 6485, 9932, 12415, 12970, 16861, 24830, 25940, 33722, 49660, 67444, 84305, 168610, 247727, 337220, 495454, 990908, 1238635, 2477270, 3220451, 4954540, 6440902, 12881804, 16102255, 32204510, 64409020]

約数ペア:

[(1, 64409020), (2, 32204510), (4, 16102255), (5, 12881804), (10, 6440902), (13, 4954540), (20, 3220451), (26, 2477270), (52, 1238635), (65, 990908), (130, 495454), (191, 337220), (260, 247727), (382, 168610), (764, 84305), (955, 67444), (1297, 49660), (1910, 33722), (2483, 25940), (2594, 24830), (3820, 16861), (4966, 12970), (5188, 12415), (6485, 9932)]