20415150

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6481}}^1$

素因数の和:6506

約数の個数: 72

約数和(自身を含む): 62693904

約数和(自身を除く): 42278754

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6481, 12962, 19443, 32405, 38886, 45367, 58329, 64810, 90734, 97215, 116658, 136101, 162025, 194430, 226835, 272202, 291645, 324050, 408303, 453670, 486075, 583290, 680505, 816606, 972150, 1134175, 1361010, 1458225, 2041515, 2268350, 2916450, 3402525, 4083030, 6805050, 10207575, 20415150]

約数ペア:

[(1, 20415150), (2, 10207575), (3, 6805050), (5, 4083030), (6, 3402525), (7, 2916450), (9, 2268350), (10, 2041515), (14, 1458225), (15, 1361010), (18, 1134175), (21, 972150), (25, 816606), (30, 680505), (35, 583290), (42, 486075), (45, 453670), (50, 408303), (63, 324050), (70, 291645), (75, 272202), (90, 226835), (105, 194430), (126, 162025), (150, 136101), (175, 116658), (210, 97215), (225, 90734), (315, 64810), (350, 58329), (450, 45367), (525, 38886), (630, 32405), (1050, 19443), (1575, 12962), (3150, 6481)]