20152976

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1071

約数の個数: 40

約数和(自身を含む): 41330688

約数和(自身を除く): 21177712

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 164, 248, 328, 496, 656, 991, 1271, 1982, 2542, 3964, 5084, 7928, 10168, 15856, 20336, 30721, 40631, 61442, 81262, 122884, 162524, 245768, 325048, 491536, 650096, 1259561, 2519122, 5038244, 10076488, 20152976]

約数ペア:

[(1, 20152976), (2, 10076488), (4, 5038244), (8, 2519122), (16, 1259561), (31, 650096), (41, 491536), (62, 325048), (82, 245768), (124, 162524), (164, 122884), (248, 81262), (328, 61442), (496, 40631), (656, 30721), (991, 20336), (1271, 15856), (1982, 10168), (2542, 7928), (3964, 5084)]