31964720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12889}}^1$

素因数の和:12933

約数の個数: 40

約数和(自身を含む): 76721280

約数和(自身を除く): 44756560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12889, 25778, 51556, 64445, 103112, 128890, 206224, 257780, 399559, 515560, 799118, 1031120, 1598236, 1997795, 3196472, 3995590, 6392944, 7991180, 15982360, 31964720]

約数ペア:

[(1, 31964720), (2, 15982360), (4, 7991180), (5, 6392944), (8, 3995590), (10, 3196472), (16, 1997795), (20, 1598236), (31, 1031120), (40, 799118), (62, 515560), (80, 399559), (124, 257780), (155, 206224), (248, 128890), (310, 103112), (496, 64445), (620, 51556), (1240, 25778), (2480, 12889)]