256845840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15973}}^1$

素因数の和:16056

約数の個数: 80

約数和(自身を含む): 808156608

約数和(自身を除く): 551310768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 402, 536, 670, 804, 1005, 1072, 1340, 1608, 2010, 2680, 3216, 4020, 5360, 8040, 15973, 16080, 31946, 47919, 63892, 79865, 95838, 127784, 159730, 191676, 239595, 255568, 319460, 383352, 479190, 638920, 766704, 958380, 1070191, 1277840, 1916760, 2140382, 3210573, 3833520, 4280764, 5350955, 6421146, 8561528, 10701910, 12842292, 16052865, 17123056, 21403820, 25684584, 32105730, 42807640, 51369168, 64211460, 85615280, 128422920, 256845840]

約数ペア:

[(1, 256845840), (2, 128422920), (3, 85615280), (4, 64211460), (5, 51369168), (6, 42807640), (8, 32105730), (10, 25684584), (12, 21403820), (15, 17123056), (16, 16052865), (20, 12842292), (24, 10701910), (30, 8561528), (40, 6421146), (48, 5350955), (60, 4280764), (67, 3833520), (80, 3210573), (120, 2140382), (134, 1916760), (201, 1277840), (240, 1070191), (268, 958380), (335, 766704), (402, 638920), (536, 479190), (670, 383352), (804, 319460), (1005, 255568), (1072, 239595), (1340, 191676), (1608, 159730), (2010, 127784), (2680, 95838), (3216, 79865), (4020, 63892), (5360, 47919), (8040, 31946), (15973, 16080)]