243879320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1087}}^1$

素因数の和:1248

約数の個数: 64

約数和(自身を含む): 564019200

約数和(自身を除く): 320139880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 284, 316, 355, 395, 568, 632, 710, 790, 1087, 1420, 1580, 2174, 2840, 3160, 4348, 5435, 5609, 8696, 10870, 11218, 21740, 22436, 28045, 43480, 44872, 56090, 77177, 85873, 112180, 154354, 171746, 224360, 308708, 343492, 385885, 429365, 617416, 686984, 771770, 858730, 1543540, 1717460, 3087080, 3434920, 6096983, 12193966, 24387932, 30484915, 48775864, 60969830, 121939660, 243879320]

約数ペア:

[(1, 243879320), (2, 121939660), (4, 60969830), (5, 48775864), (8, 30484915), (10, 24387932), (20, 12193966), (40, 6096983), (71, 3434920), (79, 3087080), (142, 1717460), (158, 1543540), (284, 858730), (316, 771770), (355, 686984), (395, 617416), (568, 429365), (632, 385885), (710, 343492), (790, 308708), (1087, 224360), (1420, 171746), (1580, 154354), (2174, 112180), (2840, 85873), (3160, 77177), (4348, 56090), (5435, 44872), (5609, 43480), (8696, 28045), (10870, 22436), (11218, 21740)]