19661940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 120

約数和(自身を含む): 63118440

約数和(自身を除く): 43456500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 81, 90, 106, 108, 135, 159, 162, 180, 212, 229, 265, 270, 318, 324, 405, 458, 477, 530, 540, 636, 687, 795, 810, 916, 954, 1060, 1145, 1374, 1431, 1590, 1620, 1908, 2061, 2290, 2385, 2748, 2862, 3180, 3435, 4122, 4293, 4580, 4770, 5724, 6183, 6870, 7155, 8244, 8586, 9540, 10305, 12137, 12366, 13740, 14310, 17172, 18549, 20610, 21465, 24274, 24732, 28620, 30915, 36411, 37098, 41220, 42930, 48548, 60685, 61830, 72822, 74196, 85860, 92745, 109233, 121370, 123660, 145644, 182055, 185490, 218466, 242740, 327699, 364110, 370980, 436932, 546165, 655398, 728220, 983097, 1092330, 1310796, 1638495, 1966194, 2184660, 3276990, 3932388, 4915485, 6553980, 9830970, 19661940]

約数ペア:

[(1, 19661940), (2, 9830970), (3, 6553980), (4, 4915485), (5, 3932388), (6, 3276990), (9, 2184660), (10, 1966194), (12, 1638495), (15, 1310796), (18, 1092330), (20, 983097), (27, 728220), (30, 655398), (36, 546165), (45, 436932), (53, 370980), (54, 364110), (60, 327699), (81, 242740), (90, 218466), (106, 185490), (108, 182055), (135, 145644), (159, 123660), (162, 121370), (180, 109233), (212, 92745), (229, 85860), (265, 74196), (270, 72822), (318, 61830), (324, 60685), (405, 48548), (458, 42930), (477, 41220), (530, 37098), (540, 36411), (636, 30915), (687, 28620), (795, 24732), (810, 24274), (916, 21465), (954, 20610), (1060, 18549), (1145, 17172), (1374, 14310), (1431, 13740), (1590, 12366), (1620, 12137), (1908, 10305), (2061, 9540), (2290, 8586), (2385, 8244), (2748, 7155), (2862, 6870), (3180, 6183), (3435, 5724), (4122, 4770), (4293, 4580)]