159808720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64439}}^1$

素因数の和:64483

約数の個数: 40

約数和(自身を含む): 383546880

約数和(自身を除く): 223738160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 64439, 128878, 257756, 322195, 515512, 644390, 1031024, 1288780, 1997609, 2577560, 3995218, 5155120, 7990436, 9988045, 15980872, 19976090, 31961744, 39952180, 79904360, 159808720]

約数ペア:

[(1, 159808720), (2, 79904360), (4, 39952180), (5, 31961744), (8, 19976090), (10, 15980872), (16, 9988045), (20, 7990436), (31, 5155120), (40, 3995218), (62, 2577560), (80, 1997609), (124, 1288780), (155, 1031024), (248, 644390), (310, 515512), (496, 322195), (620, 257756), (1240, 128878), (2480, 64439)]