2170980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1723}}^1$

素因数の和:1745

約数の個数: 72

約数和(自身を含む): 7530432

約数和(自身を除く): 5359452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1723, 3446, 5169, 6892, 8615, 10338, 12061, 15507, 17230, 20676, 24122, 25845, 31014, 34460, 36183, 48244, 51690, 60305, 62028, 72366, 77535, 103380, 108549, 120610, 144732, 155070, 180915, 217098, 241220, 310140, 361830, 434196, 542745, 723660, 1085490, 2170980]

約数ペア:

[(1, 2170980), (2, 1085490), (3, 723660), (4, 542745), (5, 434196), (6, 361830), (7, 310140), (9, 241220), (10, 217098), (12, 180915), (14, 155070), (15, 144732), (18, 120610), (20, 108549), (21, 103380), (28, 77535), (30, 72366), (35, 62028), (36, 60305), (42, 51690), (45, 48244), (60, 36183), (63, 34460), (70, 31014), (84, 25845), (90, 24122), (105, 20676), (126, 17230), (140, 15507), (180, 12061), (210, 10338), (252, 8615), (315, 6892), (420, 5169), (630, 3446), (1260, 1723)]