20718450

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 58032000

約数和(自身を除く): 37313550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 103, 135, 149, 150, 206, 225, 270, 298, 309, 447, 450, 515, 618, 675, 745, 894, 927, 1030, 1341, 1350, 1490, 1545, 1854, 2235, 2575, 2682, 2781, 3090, 3725, 4023, 4470, 4635, 5150, 5562, 6705, 7450, 7725, 8046, 9270, 11175, 13410, 13905, 15347, 15450, 20115, 22350, 23175, 27810, 30694, 33525, 40230, 46041, 46350, 67050, 69525, 76735, 92082, 100575, 138123, 139050, 153470, 201150, 230205, 276246, 383675, 414369, 460410, 690615, 767350, 828738, 1151025, 1381230, 2071845, 2302050, 3453075, 4143690, 6906150, 10359225, 20718450]

約数ペア:

[(1, 20718450), (2, 10359225), (3, 6906150), (5, 4143690), (6, 3453075), (9, 2302050), (10, 2071845), (15, 1381230), (18, 1151025), (25, 828738), (27, 767350), (30, 690615), (45, 460410), (50, 414369), (54, 383675), (75, 276246), (90, 230205), (103, 201150), (135, 153470), (149, 139050), (150, 138123), (206, 100575), (225, 92082), (270, 76735), (298, 69525), (309, 67050), (447, 46350), (450, 46041), (515, 40230), (618, 33525), (675, 30694), (745, 27810), (894, 23175), (927, 22350), (1030, 20115), (1341, 15450), (1350, 15347), (1490, 13905), (1545, 13410), (1854, 11175), (2235, 9270), (2575, 8046), (2682, 7725), (2781, 7450), (3090, 6705), (3725, 5562), (4023, 5150), (4470, 4635)]