142272640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 128

約数和(自身を含む): 359562240

約数和(自身を除く): 217289600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 101, 124, 128, 142, 155, 160, 202, 248, 284, 310, 320, 355, 404, 496, 505, 568, 620, 640, 710, 808, 992, 1010, 1136, 1240, 1420, 1616, 1984, 2020, 2201, 2272, 2480, 2840, 3131, 3232, 3968, 4040, 4402, 4544, 4960, 5680, 6262, 6464, 7171, 8080, 8804, 9088, 9920, 11005, 11360, 12524, 12928, 14342, 15655, 16160, 17608, 19840, 22010, 22720, 25048, 28684, 31310, 32320, 35216, 35855, 44020, 45440, 50096, 57368, 62620, 64640, 70432, 71710, 88040, 100192, 114736, 125240, 140864, 143420, 176080, 200384, 222301, 229472, 250480, 281728, 286840, 352160, 400768, 444602, 458944, 500960, 573680, 704320, 889204, 917888, 1001920, 1111505, 1147360, 1408640, 1778408, 2003840, 2223010, 2294720, 3556816, 4446020, 4589440, 7113632, 8892040, 14227264, 17784080, 28454528, 35568160, 71136320, 142272640]

約数ペア:

[(1, 142272640), (2, 71136320), (4, 35568160), (5, 28454528), (8, 17784080), (10, 14227264), (16, 8892040), (20, 7113632), (31, 4589440), (32, 4446020), (40, 3556816), (62, 2294720), (64, 2223010), (71, 2003840), (80, 1778408), (101, 1408640), (124, 1147360), (128, 1111505), (142, 1001920), (155, 917888), (160, 889204), (202, 704320), (248, 573680), (284, 500960), (310, 458944), (320, 444602), (355, 400768), (404, 352160), (496, 286840), (505, 281728), (568, 250480), (620, 229472), (640, 222301), (710, 200384), (808, 176080), (992, 143420), (1010, 140864), (1136, 125240), (1240, 114736), (1420, 100192), (1616, 88040), (1984, 71710), (2020, 70432), (2201, 64640), (2272, 62620), (2480, 57368), (2840, 50096), (3131, 45440), (3232, 44020), (3968, 35855), (4040, 35216), (4402, 32320), (4544, 31310), (4960, 28684), (5680, 25048), (6262, 22720), (6464, 22010), (7171, 19840), (8080, 17608), (8804, 16160), (9088, 15655), (9920, 14342), (11005, 12928), (11360, 12524)]