20201116520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1253171}}^1$

素因数の和:1253226

約数の個数: 64

約数和(自身を含む): 50527895040

約数和(自身を除く): 30326778520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 1253171, 2506342, 5012684, 6265855, 10025368, 12531710, 16291223, 25063420, 32582446, 38848301, 50126840, 65164892, 77696602, 81456115, 130329784, 155393204, 162912230, 194241505, 310786408, 325824460, 388483010, 505027913, 651648920, 776966020, 1010055826, 1553932040, 2020111652, 2525139565, 4040223304, 5050279130, 10100558260, 20201116520]

約数ペア:

[(1, 20201116520), (2, 10100558260), (4, 5050279130), (5, 4040223304), (8, 2525139565), (10, 2020111652), (13, 1553932040), (20, 1010055826), (26, 776966020), (31, 651648920), (40, 505027913), (52, 388483010), (62, 325824460), (65, 310786408), (104, 194241505), (124, 162912230), (130, 155393204), (155, 130329784), (248, 81456115), (260, 77696602), (310, 65164892), (403, 50126840), (520, 38848301), (620, 32582446), (806, 25063420), (1240, 16291223), (1612, 12531710), (2015, 10025368), (3224, 6265855), (4030, 5012684), (8060, 2506342), (16120, 1253171)]