2157288016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2131}}^1$

素因数の和:2340

約数の個数: 80

約数和(自身を含む): 4678256128

約数和(自身を除く): 2520968112

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 157, 208, 248, 314, 403, 496, 628, 806, 1256, 1612, 2041, 2131, 2512, 3224, 4082, 4262, 4867, 6448, 8164, 8524, 9734, 16328, 17048, 19468, 27703, 32656, 34096, 38936, 55406, 63271, 66061, 77872, 110812, 126542, 132122, 221624, 253084, 264244, 334567, 443248, 506168, 528488, 669134, 858793, 1012336, 1056976, 1338268, 1717586, 2676536, 3435172, 4349371, 5353072, 6870344, 8698742, 10371577, 13740688, 17397484, 20743154, 34794968, 41486308, 69589936, 82972616, 134830501, 165945232, 269661002, 539322004, 1078644008, 2157288016]

約数ペア:

[(1, 2157288016), (2, 1078644008), (4, 539322004), (8, 269661002), (13, 165945232), (16, 134830501), (26, 82972616), (31, 69589936), (52, 41486308), (62, 34794968), (104, 20743154), (124, 17397484), (157, 13740688), (208, 10371577), (248, 8698742), (314, 6870344), (403, 5353072), (496, 4349371), (628, 3435172), (806, 2676536), (1256, 1717586), (1612, 1338268), (2041, 1056976), (2131, 1012336), (2512, 858793), (3224, 669134), (4082, 528488), (4262, 506168), (4867, 443248), (6448, 334567), (8164, 264244), (8524, 253084), (9734, 221624), (16328, 132122), (17048, 126542), (19468, 110812), (27703, 77872), (32656, 66061), (34096, 63271), (38936, 55406)]