130681520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^2\times {\mathrm{439}}^1$

素因数の和:574

約数の個数: 60

約数和(自身を含む): 309600720

約数和(自身を除く): 178919200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 439, 488, 610, 878, 976, 1220, 1756, 2195, 2440, 3512, 3721, 4390, 4880, 7024, 7442, 8780, 14884, 17560, 18605, 26779, 29768, 35120, 37210, 53558, 59536, 74420, 107116, 133895, 148840, 214232, 267790, 297680, 428464, 535580, 1071160, 1633519, 2142320, 3267038, 6534076, 8167595, 13068152, 16335190, 26136304, 32670380, 65340760, 130681520]

約数ペア:

[(1, 130681520), (2, 65340760), (4, 32670380), (5, 26136304), (8, 16335190), (10, 13068152), (16, 8167595), (20, 6534076), (40, 3267038), (61, 2142320), (80, 1633519), (122, 1071160), (244, 535580), (305, 428464), (439, 297680), (488, 267790), (610, 214232), (878, 148840), (976, 133895), (1220, 107116), (1756, 74420), (2195, 59536), (2440, 53558), (3512, 37210), (3721, 35120), (4390, 29768), (4880, 26779), (7024, 18605), (7442, 17560), (8780, 14884)]