13302740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 32175360

約数和(自身を除く): 18872620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 239, 242, 253, 460, 478, 484, 506, 605, 956, 1012, 1195, 1210, 1265, 2390, 2420, 2530, 2629, 2783, 4780, 5060, 5258, 5497, 5566, 10516, 10994, 11132, 13145, 13915, 21988, 26290, 27485, 27830, 28919, 52580, 54970, 55660, 57838, 60467, 109940, 115676, 120934, 144595, 241868, 289190, 302335, 578380, 604670, 665137, 1209340, 1330274, 2660548, 3325685, 6651370, 13302740]

約数ペア:

[(1, 13302740), (2, 6651370), (4, 3325685), (5, 2660548), (10, 1330274), (11, 1209340), (20, 665137), (22, 604670), (23, 578380), (44, 302335), (46, 289190), (55, 241868), (92, 144595), (110, 120934), (115, 115676), (121, 109940), (220, 60467), (230, 57838), (239, 55660), (242, 54970), (253, 52580), (460, 28919), (478, 27830), (484, 27485), (506, 26290), (605, 21988), (956, 13915), (1012, 13145), (1195, 11132), (1210, 10994), (1265, 10516), (2390, 5566), (2420, 5497), (2530, 5258), (2629, 5060), (2783, 4780)]