81646880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1$

素因数の和:562

約数の個数: 96

約数和(自身を含む): 222082560

約数和(自身を除く): 140435680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 269, 271, 280, 538, 542, 560, 1076, 1084, 1120, 1345, 1355, 1883, 1897, 2152, 2168, 2690, 2710, 3766, 3794, 4304, 4336, 5380, 5420, 7532, 7588, 8608, 8672, 9415, 9485, 10760, 10840, 15064, 15176, 18830, 18970, 21520, 21680, 30128, 30352, 37660, 37940, 43040, 43360, 60256, 60704, 72899, 75320, 75880, 145798, 150640, 151760, 291596, 301280, 303520, 364495, 510293, 583192, 728990, 1020586, 1166384, 1457980, 2041172, 2332768, 2551465, 2915960, 4082344, 5102930, 5831920, 8164688, 10205860, 11663840, 16329376, 20411720, 40823440, 81646880]

約数ペア:

[(1, 81646880), (2, 40823440), (4, 20411720), (5, 16329376), (7, 11663840), (8, 10205860), (10, 8164688), (14, 5831920), (16, 5102930), (20, 4082344), (28, 2915960), (32, 2551465), (35, 2332768), (40, 2041172), (56, 1457980), (70, 1166384), (80, 1020586), (112, 728990), (140, 583192), (160, 510293), (224, 364495), (269, 303520), (271, 301280), (280, 291596), (538, 151760), (542, 150640), (560, 145798), (1076, 75880), (1084, 75320), (1120, 72899), (1345, 60704), (1355, 60256), (1883, 43360), (1897, 43040), (2152, 37940), (2168, 37660), (2690, 30352), (2710, 30128), (3766, 21680), (3794, 21520), (4304, 18970), (4336, 18830), (5380, 15176), (5420, 15064), (7532, 10840), (7588, 10760), (8608, 9485), (8672, 9415)]