40688440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{463}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 99388800

約数和(自身を除く): 58700360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 463, 520, 676, 845, 926, 1352, 1690, 1852, 2197, 2315, 3380, 3704, 4394, 4630, 6019, 6760, 8788, 9260, 10985, 12038, 17576, 18520, 21970, 24076, 30095, 43940, 48152, 60190, 78247, 87880, 120380, 156494, 240760, 312988, 391235, 625976, 782470, 1017211, 1564940, 2034422, 3129880, 4068844, 5086055, 8137688, 10172110, 20344220, 40688440]

約数ペア:

[(1, 40688440), (2, 20344220), (4, 10172110), (5, 8137688), (8, 5086055), (10, 4068844), (13, 3129880), (20, 2034422), (26, 1564940), (40, 1017211), (52, 782470), (65, 625976), (104, 391235), (130, 312988), (169, 240760), (260, 156494), (338, 120380), (463, 87880), (520, 78247), (676, 60190), (845, 48152), (926, 43940), (1352, 30095), (1690, 24076), (1852, 21970), (2197, 18520), (2315, 17576), (3380, 12038), (3704, 10985), (4394, 9260), (4630, 8788), (6019, 6760)]