28264740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 91203840

約数和(自身を除く): 62939100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 173, 210, 346, 389, 420, 519, 692, 778, 865, 1038, 1167, 1211, 1556, 1730, 1945, 2076, 2334, 2422, 2595, 2723, 3460, 3633, 3890, 4668, 4844, 5190, 5446, 5835, 6055, 7266, 7780, 8169, 10380, 10892, 11670, 12110, 13615, 14532, 16338, 18165, 23340, 24220, 27230, 32676, 36330, 40845, 54460, 67297, 72660, 81690, 134594, 163380, 201891, 269188, 336485, 403782, 471079, 672970, 807564, 942158, 1009455, 1345940, 1413237, 1884316, 2018910, 2355395, 2826474, 4037820, 4710790, 5652948, 7066185, 9421580, 14132370, 28264740]

約数ペア:

[(1, 28264740), (2, 14132370), (3, 9421580), (4, 7066185), (5, 5652948), (6, 4710790), (7, 4037820), (10, 2826474), (12, 2355395), (14, 2018910), (15, 1884316), (20, 1413237), (21, 1345940), (28, 1009455), (30, 942158), (35, 807564), (42, 672970), (60, 471079), (70, 403782), (84, 336485), (105, 269188), (140, 201891), (173, 163380), (210, 134594), (346, 81690), (389, 72660), (420, 67297), (519, 54460), (692, 40845), (778, 36330), (865, 32676), (1038, 27230), (1167, 24220), (1211, 23340), (1556, 18165), (1730, 16338), (1945, 14532), (2076, 13615), (2334, 12110), (2422, 11670), (2595, 10892), (2723, 10380), (3460, 8169), (3633, 7780), (3890, 7266), (4668, 6055), (4844, 5835), (5190, 5446)]