816304860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{647861}}^1$

素因数の和:647883

約数の個数: 72

約数和(自身を含む): 2829861216

約数和(自身を除く): 2013556356

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, 647861, 1295722, 1943583, 2591444, 3239305, 3887166, 4535027, 5830749, 6478610, 7774332, 9070054, 9717915, 11661498, 12957220, 13605081, 18140108, 19435830, 22675135, 23322996, 27210162, 29153745, 38871660, 40815243, 45350270, 54420324, 58307490, 68025405, 81630486, 90700540, 116614980, 136050810, 163260972, 204076215, 272101620, 408152430, 816304860]

約数ペア:

[(1, 816304860), (2, 408152430), (3, 272101620), (4, 204076215), (5, 163260972), (6, 136050810), (7, 116614980), (9, 90700540), (10, 81630486), (12, 68025405), (14, 58307490), (15, 54420324), (18, 45350270), (20, 40815243), (21, 38871660), (28, 29153745), (30, 27210162), (35, 23322996), (36, 22675135), (42, 19435830), (45, 18140108), (60, 13605081), (63, 12957220), (70, 11661498), (84, 9717915), (90, 9070054), (105, 7774332), (126, 6478610), (140, 5830749), (180, 4535027), (210, 3887166), (252, 3239305), (315, 2591444), (420, 1943583), (630, 1295722), (1260, 647861)]