20511840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 65270016

約数和(自身を除く): 44758176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 151, 160, 240, 283, 302, 453, 480, 566, 604, 755, 849, 906, 1132, 1208, 1415, 1510, 1698, 1812, 2264, 2265, 2416, 2830, 3020, 3396, 3624, 4245, 4528, 4530, 4832, 5660, 6040, 6792, 7248, 8490, 9056, 9060, 11320, 12080, 13584, 14496, 16980, 18120, 22640, 24160, 27168, 33960, 36240, 42733, 45280, 67920, 72480, 85466, 128199, 135840, 170932, 213665, 256398, 341864, 427330, 512796, 640995, 683728, 854660, 1025592, 1281990, 1367456, 1709320, 2051184, 2563980, 3418640, 4102368, 5127960, 6837280, 10255920, 20511840]

約数ペア:

[(1, 20511840), (2, 10255920), (3, 6837280), (4, 5127960), (5, 4102368), (6, 3418640), (8, 2563980), (10, 2051184), (12, 1709320), (15, 1367456), (16, 1281990), (20, 1025592), (24, 854660), (30, 683728), (32, 640995), (40, 512796), (48, 427330), (60, 341864), (80, 256398), (96, 213665), (120, 170932), (151, 135840), (160, 128199), (240, 85466), (283, 72480), (302, 67920), (453, 45280), (480, 42733), (566, 36240), (604, 33960), (755, 27168), (849, 24160), (906, 22640), (1132, 18120), (1208, 16980), (1415, 14496), (1510, 13584), (1698, 12080), (1812, 11320), (2264, 9060), (2265, 9056), (2416, 8490), (2830, 7248), (3020, 6792), (3396, 6040), (3624, 5660), (4245, 4832), (4528, 4530)]