311933925

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 593667360

約数和(自身を除く): 281733435

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 131, 171, 225, 285, 393, 475, 557, 655, 855, 1179, 1425, 1671, 1965, 2489, 2785, 3275, 4275, 5013, 5895, 7467, 8355, 9825, 10583, 12445, 13925, 22401, 25065, 29475, 31749, 37335, 41775, 52915, 62225, 72967, 95247, 112005, 125325, 158745, 186675, 218901, 264575, 364835, 476235, 560025, 656703, 793725, 1094505, 1386373, 1824175, 2381175, 3283515, 4159119, 5472525, 6931865, 12477357, 16417575, 20795595, 34659325, 62386785, 103977975, 311933925]

約数ペア:

[(1, 311933925), (3, 103977975), (5, 62386785), (9, 34659325), (15, 20795595), (19, 16417575), (25, 12477357), (45, 6931865), (57, 5472525), (75, 4159119), (95, 3283515), (131, 2381175), (171, 1824175), (225, 1386373), (285, 1094505), (393, 793725), (475, 656703), (557, 560025), (655, 476235), (855, 364835), (1179, 264575), (1425, 218901), (1671, 186675), (1965, 158745), (2489, 125325), (2785, 112005), (3275, 95247), (4275, 72967), (5013, 62225), (5895, 52915), (7467, 41775), (8355, 37335), (9825, 31749), (10583, 29475), (12445, 25065), (13925, 22401)]