20804915900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 46701385920

約数和(自身を除く): 25896470020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 113, 137, 151, 178, 226, 274, 302, 356, 445, 452, 548, 565, 604, 685, 755, 890, 1130, 1370, 1510, 1780, 2225, 2260, 2740, 2825, 3020, 3425, 3775, 4450, 5650, 6850, 7550, 8900, 10057, 11300, 12193, 13439, 13700, 15100, 15481, 17063, 20114, 20687, 24386, 26878, 30962, 34126, 40228, 41374, 48772, 50285, 53756, 60965, 61924, 67195, 68252, 77405, 82748, 85315, 100570, 103435, 121930, 134390, 154810, 170630, 201140, 206870, 243860, 251425, 268780, 304825, 309620, 335975, 341260, 387025, 413740, 426575, 502850, 517175, 609650, 671950, 774050, 853150, 1005700, 1034350, 1219300, 1343900, 1377809, 1518607, 1548100, 1706300, 1841143, 2068700, 2337631, 2755618, 3037214, 3682286, 4675262, 5511236, 6074428, 6889045, 7364572, 7593035, 9205715, 9350524, 11688155, 13778090, 15186070, 18411430, 23376310, 27556180, 30372140, 34445225, 36822860, 37965175, 46028575, 46752620, 58440775, 68890450, 75930350, 92057150, 116881550, 137780900, 151860700, 184114300, 208049159, 233763100, 416098318, 832196636, 1040245795, 2080491590, 4160983180, 5201228975, 10402457950, 20804915900]

約数ペア:

[(1, 20804915900), (2, 10402457950), (4, 5201228975), (5, 4160983180), (10, 2080491590), (20, 1040245795), (25, 832196636), (50, 416098318), (89, 233763100), (100, 208049159), (113, 184114300), (137, 151860700), (151, 137780900), (178, 116881550), (226, 92057150), (274, 75930350), (302, 68890450), (356, 58440775), (445, 46752620), (452, 46028575), (548, 37965175), (565, 36822860), (604, 34445225), (685, 30372140), (755, 27556180), (890, 23376310), (1130, 18411430), (1370, 15186070), (1510, 13778090), (1780, 11688155), (2225, 9350524), (2260, 9205715), (2740, 7593035), (2825, 7364572), (3020, 6889045), (3425, 6074428), (3775, 5511236), (4450, 4675262), (5650, 3682286), (6850, 3037214), (7550, 2755618), (8900, 2337631), (10057, 2068700), (11300, 1841143), (12193, 1706300), (13439, 1548100), (13700, 1518607), (15100, 1377809), (15481, 1343900), (17063, 1219300), (20114, 1034350), (20687, 1005700), (24386, 853150), (26878, 774050), (30962, 671950), (34126, 609650), (40228, 517175), (41374, 502850), (48772, 426575), (50285, 413740), (53756, 387025), (60965, 341260), (61924, 335975), (67195, 309620), (68252, 304825), (77405, 268780), (82748, 251425), (85315, 243860), (100570, 206870), (103435, 201140), (121930, 170630), (134390, 154810)]