441440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 1088640

約数和(自身を除く): 647200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 89, 124, 155, 160, 178, 248, 310, 356, 445, 496, 620, 712, 890, 992, 1240, 1424, 1780, 2480, 2759, 2848, 3560, 4960, 5518, 7120, 11036, 13795, 14240, 22072, 27590, 44144, 55180, 88288, 110360, 220720, 441440]

約数ペア:

[(1, 441440), (2, 220720), (4, 110360), (5, 88288), (8, 55180), (10, 44144), (16, 27590), (20, 22072), (31, 14240), (32, 13795), (40, 11036), (62, 7120), (80, 5518), (89, 4960), (124, 3560), (155, 2848), (160, 2759), (178, 2480), (248, 1780), (310, 1424), (356, 1240), (445, 992), (496, 890), (620, 712)]