20704810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 45785088

約数和(自身を除く): 25080278

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 127, 137, 170, 238, 254, 274, 595, 635, 685, 889, 959, 1190, 1270, 1370, 1778, 1918, 2159, 2329, 4318, 4445, 4658, 4795, 8890, 9590, 10795, 11645, 15113, 16303, 17399, 21590, 23290, 30226, 32606, 34798, 75565, 81515, 86995, 121793, 151130, 163030, 173990, 243586, 295783, 591566, 608965, 1217930, 1478915, 2070481, 2957830, 4140962, 10352405, 20704810]

約数ペア:

[(1, 20704810), (2, 10352405), (5, 4140962), (7, 2957830), (10, 2070481), (14, 1478915), (17, 1217930), (34, 608965), (35, 591566), (70, 295783), (85, 243586), (119, 173990), (127, 163030), (137, 151130), (170, 121793), (238, 86995), (254, 81515), (274, 75565), (595, 34798), (635, 32606), (685, 30226), (889, 23290), (959, 21590), (1190, 17399), (1270, 16303), (1370, 15113), (1778, 11645), (1918, 10795), (2159, 9590), (2329, 8890), (4318, 4795), (4445, 4658)]