20001112

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 41002920

約数和(自身を除く): 21001808

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 211, 289, 328, 422, 578, 697, 844, 1156, 1394, 1688, 2312, 2788, 3587, 5576, 7174, 8651, 11849, 14348, 17302, 23698, 28696, 34604, 47396, 60979, 69208, 94792, 121958, 147067, 243916, 294134, 487832, 588268, 1176536, 2500139, 5000278, 10000556, 20001112]

約数ペア:

[(1, 20001112), (2, 10000556), (4, 5000278), (8, 2500139), (17, 1176536), (34, 588268), (41, 487832), (68, 294134), (82, 243916), (136, 147067), (164, 121958), (211, 94792), (289, 69208), (328, 60979), (422, 47396), (578, 34604), (697, 28696), (844, 23698), (1156, 17302), (1394, 14348), (1688, 11849), (2312, 8651), (2788, 7174), (3587, 5576)]