77787780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2081}}^1$

素因数の和:2189

約数の個数: 96

約数和(自身を含む): 251838720

約数和(自身を除く): 174050940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 890, 1068, 1246, 1335, 1780, 1869, 2081, 2492, 2670, 3115, 3738, 4162, 5340, 6230, 6243, 7476, 8324, 9345, 10405, 12460, 12486, 14567, 18690, 20810, 24972, 29134, 31215, 37380, 41620, 43701, 58268, 62430, 72835, 87402, 124860, 145670, 174804, 185209, 218505, 291340, 370418, 437010, 555627, 740836, 874020, 926045, 1111254, 1296463, 1852090, 2222508, 2592926, 2778135, 3704180, 3889389, 5185852, 5556270, 6482315, 7778778, 11112540, 12964630, 15557556, 19446945, 25929260, 38893890, 77787780]

約数ペア:

[(1, 77787780), (2, 38893890), (3, 25929260), (4, 19446945), (5, 15557556), (6, 12964630), (7, 11112540), (10, 7778778), (12, 6482315), (14, 5556270), (15, 5185852), (20, 3889389), (21, 3704180), (28, 2778135), (30, 2592926), (35, 2222508), (42, 1852090), (60, 1296463), (70, 1111254), (84, 926045), (89, 874020), (105, 740836), (140, 555627), (178, 437010), (210, 370418), (267, 291340), (356, 218505), (420, 185209), (445, 174804), (534, 145670), (623, 124860), (890, 87402), (1068, 72835), (1246, 62430), (1335, 58268), (1780, 43701), (1869, 41620), (2081, 37380), (2492, 31215), (2670, 29134), (3115, 24972), (3738, 20810), (4162, 18690), (5340, 14567), (6230, 12486), (6243, 12460), (7476, 10405), (8324, 9345)]