81214640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6007}}^1$

素因数の和:6046

約数の個数: 60

約数和(自身を含む): 204500304

約数和(自身を除く): 123285664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6007, 6760, 12014, 13520, 24028, 30035, 48056, 60070, 78091, 96112, 120140, 156182, 240280, 312364, 390455, 480560, 624728, 780910, 1015183, 1249456, 1561820, 2030366, 3123640, 4060732, 5075915, 6247280, 8121464, 10151830, 16242928, 20303660, 40607320, 81214640]

約数ペア:

[(1, 81214640), (2, 40607320), (4, 20303660), (5, 16242928), (8, 10151830), (10, 8121464), (13, 6247280), (16, 5075915), (20, 4060732), (26, 3123640), (40, 2030366), (52, 1561820), (65, 1249456), (80, 1015183), (104, 780910), (130, 624728), (169, 480560), (208, 390455), (260, 312364), (338, 240280), (520, 156182), (676, 120140), (845, 96112), (1040, 78091), (1352, 60070), (1690, 48056), (2704, 30035), (3380, 24028), (6007, 13520), (6760, 12014)]