28236065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 44416512

約数和(自身を除く): 16180447

約数列:

[1, 5, 11, 13, 17, 23, 55, 65, 85, 101, 115, 143, 187, 221, 253, 299, 391, 505, 715, 935, 1105, 1111, 1265, 1313, 1495, 1717, 1955, 2323, 2431, 3289, 4301, 5083, 5555, 6565, 8585, 11615, 12155, 14443, 16445, 18887, 21505, 22321, 25415, 25553, 30199, 39491, 55913, 72215, 94435, 111605, 127765, 150995, 197455, 245531, 279565, 332189, 434401, 513383, 1227655, 1660945, 2172005, 2566915, 5647213, 28236065]

約数ペア:

[(1, 28236065), (5, 5647213), (11, 2566915), (13, 2172005), (17, 1660945), (23, 1227655), (55, 513383), (65, 434401), (85, 332189), (101, 279565), (115, 245531), (143, 197455), (187, 150995), (221, 127765), (253, 111605), (299, 94435), (391, 72215), (505, 55913), (715, 39491), (935, 30199), (1105, 25553), (1111, 25415), (1265, 22321), (1313, 21505), (1495, 18887), (1717, 16445), (1955, 14443), (2323, 12155), (2431, 11615), (3289, 8585), (4301, 6565), (5083, 5555)]