81566520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97103}}^1$

素因数の和:97124

約数の個数: 64

約数和(自身を含む): 279659520

約数和(自身を除く): 198093000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97103, 194206, 291309, 388412, 485515, 582618, 679721, 776824, 971030, 1165236, 1359442, 1456545, 1942060, 2039163, 2330472, 2718884, 2913090, 3398605, 3884120, 4078326, 5437768, 5826180, 6797210, 8156652, 10195815, 11652360, 13594420, 16313304, 20391630, 27188840, 40783260, 81566520]

約数ペア:

[(1, 81566520), (2, 40783260), (3, 27188840), (4, 20391630), (5, 16313304), (6, 13594420), (7, 11652360), (8, 10195815), (10, 8156652), (12, 6797210), (14, 5826180), (15, 5437768), (20, 4078326), (21, 3884120), (24, 3398605), (28, 2913090), (30, 2718884), (35, 2330472), (40, 2039163), (42, 1942060), (56, 1456545), (60, 1359442), (70, 1165236), (84, 971030), (105, 776824), (120, 679721), (140, 582618), (168, 485515), (210, 388412), (280, 291309), (420, 194206), (840, 97103)]