81937380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{195089}}^1$

素因数の和:195108

約数の個数: 48

約数和(自身を含む): 262200960

約数和(自身を除く): 180263580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 195089, 390178, 585267, 780356, 975445, 1170534, 1365623, 1950890, 2341068, 2731246, 2926335, 3901780, 4096869, 5462492, 5852670, 6828115, 8193738, 11705340, 13656230, 16387476, 20484345, 27312460, 40968690, 81937380]

約数ペア:

[(1, 81937380), (2, 40968690), (3, 27312460), (4, 20484345), (5, 16387476), (6, 13656230), (7, 11705340), (10, 8193738), (12, 6828115), (14, 5852670), (15, 5462492), (20, 4096869), (21, 3901780), (28, 2926335), (30, 2731246), (35, 2341068), (42, 1950890), (60, 1365623), (70, 1170534), (84, 975445), (105, 780356), (140, 585267), (210, 390178), (420, 195089)]