177940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 451584

約数和(自身を除く): 273644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 124, 140, 155, 164, 205, 217, 287, 310, 410, 434, 574, 620, 820, 868, 1085, 1148, 1271, 1435, 2170, 2542, 2870, 4340, 5084, 5740, 6355, 8897, 12710, 17794, 25420, 35588, 44485, 88970, 177940]

約数ペア:

[(1, 177940), (2, 88970), (4, 44485), (5, 35588), (7, 25420), (10, 17794), (14, 12710), (20, 8897), (28, 6355), (31, 5740), (35, 5084), (41, 4340), (62, 2870), (70, 2542), (82, 2170), (124, 1435), (140, 1271), (155, 1148), (164, 1085), (205, 868), (217, 820), (287, 620), (310, 574), (410, 434)]