28193620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2213}}^1$

素因数の和:2249

約数の個数: 72

約数和(自身を含む): 74204424

約数和(自身を除く): 46010804

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2213, 2548, 3185, 4426, 6370, 8852, 11065, 12740, 15491, 22130, 28769, 30982, 44260, 57538, 61964, 77455, 108437, 115076, 143845, 154910, 201383, 216874, 287690, 309820, 402766, 433748, 542185, 575380, 805532, 1006915, 1084370, 1409681, 2013830, 2168740, 2819362, 4027660, 5638724, 7048405, 14096810, 28193620]

約数ペア:

[(1, 28193620), (2, 14096810), (4, 7048405), (5, 5638724), (7, 4027660), (10, 2819362), (13, 2168740), (14, 2013830), (20, 1409681), (26, 1084370), (28, 1006915), (35, 805532), (49, 575380), (52, 542185), (65, 433748), (70, 402766), (91, 309820), (98, 287690), (130, 216874), (140, 201383), (182, 154910), (196, 143845), (245, 115076), (260, 108437), (364, 77455), (455, 61964), (490, 57538), (637, 44260), (910, 30982), (980, 28769), (1274, 22130), (1820, 15491), (2213, 12740), (2548, 11065), (3185, 8852), (4426, 6370)]