17987440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7253}}^1$

素因数の和:7297

約数の個数: 40

約数和(自身を含む): 43175808

約数和(自身を除く): 25188368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7253, 14506, 29012, 36265, 58024, 72530, 116048, 145060, 224843, 290120, 449686, 580240, 899372, 1124215, 1798744, 2248430, 3597488, 4496860, 8993720, 17987440]

約数ペア:

[(1, 17987440), (2, 8993720), (4, 4496860), (5, 3597488), (8, 2248430), (10, 1798744), (16, 1124215), (20, 899372), (31, 580240), (40, 449686), (62, 290120), (80, 224843), (124, 145060), (155, 116048), (248, 72530), (310, 58024), (496, 36265), (620, 29012), (1240, 14506), (2480, 7253)]