1812780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{373}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 5717712

約数和(自身を除く): 3904932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 373, 405, 486, 540, 746, 810, 972, 1119, 1215, 1492, 1620, 1865, 2238, 2430, 3357, 3730, 4476, 4860, 5595, 6714, 7460, 10071, 11190, 13428, 16785, 20142, 22380, 30213, 33570, 40284, 50355, 60426, 67140, 90639, 100710, 120852, 151065, 181278, 201420, 302130, 362556, 453195, 604260, 906390, 1812780]

約数ペア:

[(1, 1812780), (2, 906390), (3, 604260), (4, 453195), (5, 362556), (6, 302130), (9, 201420), (10, 181278), (12, 151065), (15, 120852), (18, 100710), (20, 90639), (27, 67140), (30, 60426), (36, 50355), (45, 40284), (54, 33570), (60, 30213), (81, 22380), (90, 20142), (108, 16785), (135, 13428), (162, 11190), (180, 10071), (243, 7460), (270, 6714), (324, 5595), (373, 4860), (405, 4476), (486, 3730), (540, 3357), (746, 2430), (810, 2238), (972, 1865), (1119, 1620), (1215, 1492)]