20172089990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{79861}}^1$

素因数の和:79977

約数の個数: 64

約数和(自身を含む): 41055456960

約数和(自身を除く): 20883366970

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 67, 130, 134, 145, 290, 335, 377, 670, 754, 871, 1742, 1885, 1943, 3770, 3886, 4355, 8710, 9715, 19430, 25259, 50518, 79861, 126295, 159722, 252590, 399305, 798610, 1038193, 2076386, 2315969, 4631938, 5190965, 5350687, 10381930, 10701374, 11579845, 23159690, 26753435, 30107597, 53506870, 60215194, 69558931, 139117862, 150537985, 155169923, 301075970, 310339846, 347794655, 695589310, 775849615, 1551699230, 2017208999, 4034417998, 10086044995, 20172089990]

約数ペア:

[(1, 20172089990), (2, 10086044995), (5, 4034417998), (10, 2017208999), (13, 1551699230), (26, 775849615), (29, 695589310), (58, 347794655), (65, 310339846), (67, 301075970), (130, 155169923), (134, 150537985), (145, 139117862), (290, 69558931), (335, 60215194), (377, 53506870), (670, 30107597), (754, 26753435), (871, 23159690), (1742, 11579845), (1885, 10701374), (1943, 10381930), (3770, 5350687), (3886, 5190965), (4355, 4631938), (8710, 2315969), (9715, 2076386), (19430, 1038193), (25259, 798610), (50518, 399305), (79861, 252590), (126295, 159722)]