440609240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{839}}^1$

素因数の和:1560

約数の個数: 64

約数和(自身を含む): 1046304000

約数和(自身を除く): 605694760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 691, 760, 839, 1382, 1678, 2764, 3356, 3455, 4195, 5528, 6712, 6910, 8390, 13129, 13820, 15941, 16780, 26258, 27640, 31882, 33560, 52516, 63764, 65645, 79705, 105032, 127528, 131290, 159410, 262580, 318820, 525160, 579749, 637640, 1159498, 2318996, 2898745, 4637992, 5797490, 11015231, 11594980, 22030462, 23189960, 44060924, 55076155, 88121848, 110152310, 220304620, 440609240]

約数ペア:

[(1, 440609240), (2, 220304620), (4, 110152310), (5, 88121848), (8, 55076155), (10, 44060924), (19, 23189960), (20, 22030462), (38, 11594980), (40, 11015231), (76, 5797490), (95, 4637992), (152, 2898745), (190, 2318996), (380, 1159498), (691, 637640), (760, 579749), (839, 525160), (1382, 318820), (1678, 262580), (2764, 159410), (3356, 131290), (3455, 127528), (4195, 105032), (5528, 79705), (6712, 65645), (6910, 63764), (8390, 52516), (13129, 33560), (13820, 31882), (15941, 27640), (16780, 26258)]