151280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:105

約数の個数: 40

約数和(自身を含む): 369024

約数和(自身を除く): 217744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 244, 248, 305, 310, 488, 496, 610, 620, 976, 1220, 1240, 1891, 2440, 2480, 3782, 4880, 7564, 9455, 15128, 18910, 30256, 37820, 75640, 151280]

約数ペア:

[(1, 151280), (2, 75640), (4, 37820), (5, 30256), (8, 18910), (10, 15128), (16, 9455), (20, 7564), (31, 4880), (40, 3782), (61, 2480), (62, 2440), (80, 1891), (122, 1240), (124, 1220), (155, 976), (244, 620), (248, 610), (305, 496), (310, 488)]