20853630

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 42045570

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 79, 90, 105, 126, 158, 210, 237, 315, 395, 419, 474, 553, 630, 711, 790, 838, 1106, 1185, 1257, 1422, 1659, 2095, 2370, 2514, 2765, 2933, 3318, 3555, 3771, 4190, 4977, 5530, 5866, 6285, 7110, 7542, 8295, 8799, 9954, 12570, 14665, 16590, 17598, 18855, 24885, 26397, 29330, 33101, 37710, 43995, 49770, 52794, 66202, 87990, 99303, 131985, 165505, 198606, 231707, 263970, 297909, 331010, 463414, 496515, 595818, 695121, 993030, 1158535, 1390242, 1489545, 2085363, 2317070, 2979090, 3475605, 4170726, 6951210, 10426815, 20853630]

約数ペア:

[(1, 20853630), (2, 10426815), (3, 6951210), (5, 4170726), (6, 3475605), (7, 2979090), (9, 2317070), (10, 2085363), (14, 1489545), (15, 1390242), (18, 1158535), (21, 993030), (30, 695121), (35, 595818), (42, 496515), (45, 463414), (63, 331010), (70, 297909), (79, 263970), (90, 231707), (105, 198606), (126, 165505), (158, 131985), (210, 99303), (237, 87990), (315, 66202), (395, 52794), (419, 49770), (474, 43995), (553, 37710), (630, 33101), (711, 29330), (790, 26397), (838, 24885), (1106, 18855), (1185, 17598), (1257, 16590), (1422, 14665), (1659, 12570), (2095, 9954), (2370, 8799), (2514, 8295), (2765, 7542), (2933, 7110), (3318, 6285), (3555, 5866), (3771, 5530), (4190, 4977)]