8404720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3433

約数の個数: 40

約数和(自身を含む): 20177280

約数和(自身を除く): 11772560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 3389, 6778, 13556, 16945, 27112, 33890, 54224, 67780, 105059, 135560, 210118, 271120, 420236, 525295, 840472, 1050590, 1680944, 2101180, 4202360, 8404720]

約数ペア:

[(1, 8404720), (2, 4202360), (4, 2101180), (5, 1680944), (8, 1050590), (10, 840472), (16, 525295), (20, 420236), (31, 271120), (40, 210118), (62, 135560), (80, 105059), (124, 67780), (155, 54224), (248, 33890), (310, 27112), (496, 16945), (620, 13556), (1240, 6778), (2480, 3389)]