1620236020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{327983}}^1$

素因数の和:328024

約数の個数: 48

約数和(自身を含む): 3857091840

約数和(自身を除く): 2236855820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 327983, 655966, 1311932, 1639915, 3279830, 4263779, 6231677, 6559660, 8527558, 12463354, 17055116, 21318895, 24926708, 31158385, 42637790, 62316770, 81011801, 85275580, 124633540, 162023602, 324047204, 405059005, 810118010, 1620236020]

約数ペア:

[(1, 1620236020), (2, 810118010), (4, 405059005), (5, 324047204), (10, 162023602), (13, 124633540), (19, 85275580), (20, 81011801), (26, 62316770), (38, 42637790), (52, 31158385), (65, 24926708), (76, 21318895), (95, 17055116), (130, 12463354), (190, 8527558), (247, 6559660), (260, 6231677), (380, 4263779), (494, 3279830), (988, 1639915), (1235, 1311932), (2470, 655966), (4940, 327983)]