80756820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{89}}^1$

素因数の和:246

約数の個数: 108

約数和(自身を含む): 251252820

約数和(自身を除く): 170496000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 89, 90, 142, 178, 180, 213, 267, 284, 355, 356, 426, 445, 534, 639, 710, 801, 852, 890, 1065, 1068, 1278, 1335, 1420, 1602, 1780, 2130, 2556, 2670, 3195, 3204, 4005, 4260, 5041, 5340, 6319, 6390, 8010, 10082, 12638, 12780, 15123, 16020, 18957, 20164, 25205, 25276, 30246, 31595, 37914, 45369, 50410, 56871, 60492, 63190, 75615, 75828, 90738, 94785, 100820, 113742, 126380, 151230, 181476, 189570, 226845, 227484, 284355, 302460, 379140, 448649, 453690, 568710, 897298, 907380, 1137420, 1345947, 1794596, 2243245, 2691894, 4037841, 4486490, 5383788, 6729735, 8075682, 8972980, 13459470, 16151364, 20189205, 26918940, 40378410, 80756820]

約数ペア:

[(1, 80756820), (2, 40378410), (3, 26918940), (4, 20189205), (5, 16151364), (6, 13459470), (9, 8972980), (10, 8075682), (12, 6729735), (15, 5383788), (18, 4486490), (20, 4037841), (30, 2691894), (36, 2243245), (45, 1794596), (60, 1345947), (71, 1137420), (89, 907380), (90, 897298), (142, 568710), (178, 453690), (180, 448649), (213, 379140), (267, 302460), (284, 284355), (355, 227484), (356, 226845), (426, 189570), (445, 181476), (534, 151230), (639, 126380), (710, 113742), (801, 100820), (852, 94785), (890, 90738), (1065, 75828), (1068, 75615), (1278, 63190), (1335, 60492), (1420, 56871), (1602, 50410), (1780, 45369), (2130, 37914), (2556, 31595), (2670, 30246), (3195, 25276), (3204, 25205), (4005, 20164), (4260, 18957), (5041, 16020), (5340, 15123), (6319, 12780), (6390, 12638), (8010, 10082)]