129129320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1297}}^1$

素因数の和:1458

約数の個数: 64

約数和(自身を含む): 308404800

約数和(自身を除く): 179275480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 190, 262, 380, 524, 655, 760, 1048, 1297, 1310, 2489, 2594, 2620, 4978, 5188, 5240, 6485, 9956, 10376, 12445, 12970, 19912, 24643, 24890, 25940, 49286, 49780, 51880, 98572, 99560, 123215, 169907, 197144, 246430, 339814, 492860, 679628, 849535, 985720, 1359256, 1699070, 3228233, 3398140, 6456466, 6796280, 12912932, 16141165, 25825864, 32282330, 64564660, 129129320]

約数ペア:

[(1, 129129320), (2, 64564660), (4, 32282330), (5, 25825864), (8, 16141165), (10, 12912932), (19, 6796280), (20, 6456466), (38, 3398140), (40, 3228233), (76, 1699070), (95, 1359256), (131, 985720), (152, 849535), (190, 679628), (262, 492860), (380, 339814), (524, 246430), (655, 197144), (760, 169907), (1048, 123215), (1297, 99560), (1310, 98572), (2489, 51880), (2594, 49780), (2620, 49286), (4978, 25940), (5188, 24890), (5240, 24643), (6485, 19912), (9956, 12970), (10376, 12445)]