49137790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 100154880

約数和(自身を除く): 51017090

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 89, 130, 137, 155, 178, 274, 310, 403, 445, 685, 806, 890, 1157, 1370, 1781, 2015, 2314, 2759, 3562, 4030, 4247, 5518, 5785, 8494, 8905, 11570, 12193, 13795, 17810, 21235, 24386, 27590, 35867, 42470, 55211, 60965, 71734, 110422, 121930, 158509, 179335, 276055, 317018, 358670, 377983, 552110, 755966, 792545, 1585090, 1889915, 3779830, 4913779, 9827558, 24568895, 49137790]

約数ペア:

[(1, 49137790), (2, 24568895), (5, 9827558), (10, 4913779), (13, 3779830), (26, 1889915), (31, 1585090), (62, 792545), (65, 755966), (89, 552110), (130, 377983), (137, 358670), (155, 317018), (178, 276055), (274, 179335), (310, 158509), (403, 121930), (445, 110422), (685, 71734), (806, 60965), (890, 55211), (1157, 42470), (1370, 35867), (1781, 27590), (2015, 24386), (2314, 21235), (2759, 17810), (3562, 13795), (4030, 12193), (4247, 11570), (5518, 8905), (5785, 8494)]