1917505000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 160

約数和(自身を含む): 4723488000

約数和(自身を除く): 2805983000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 89, 100, 124, 125, 139, 155, 178, 200, 248, 250, 278, 310, 356, 445, 500, 556, 620, 625, 695, 712, 775, 890, 1000, 1112, 1240, 1250, 1390, 1550, 1780, 2225, 2500, 2759, 2780, 3100, 3475, 3560, 3875, 4309, 4450, 5000, 5518, 5560, 6200, 6950, 7750, 8618, 8900, 11036, 11125, 12371, 13795, 13900, 15500, 17236, 17375, 17800, 19375, 21545, 22072, 22250, 24742, 27590, 27800, 31000, 34472, 34750, 38750, 43090, 44500, 49484, 55180, 55625, 61855, 68975, 69500, 77500, 86180, 86875, 89000, 98968, 107725, 110360, 111250, 123710, 137950, 139000, 155000, 172360, 173750, 215450, 222500, 247420, 275900, 309275, 344875, 347500, 383501, 430900, 445000, 494840, 538625, 551800, 618550, 689750, 695000, 767002, 861800, 1077250, 1237100, 1379500, 1534004, 1546375, 1724375, 1917505, 2154500, 2474200, 2693125, 2759000, 3068008, 3092750, 3448750, 3835010, 4309000, 5386250, 6185500, 6897500, 7670020, 7731875, 9587525, 10772500, 12371000, 13795000, 15340040, 15463750, 19175050, 21545000, 30927500, 38350100, 47937625, 61855000, 76700200, 95875250, 191750500, 239688125, 383501000, 479376250, 958752500, 1917505000]

約数ペア:

[(1, 1917505000), (2, 958752500), (4, 479376250), (5, 383501000), (8, 239688125), (10, 191750500), (20, 95875250), (25, 76700200), (31, 61855000), (40, 47937625), (50, 38350100), (62, 30927500), (89, 21545000), (100, 19175050), (124, 15463750), (125, 15340040), (139, 13795000), (155, 12371000), (178, 10772500), (200, 9587525), (248, 7731875), (250, 7670020), (278, 6897500), (310, 6185500), (356, 5386250), (445, 4309000), (500, 3835010), (556, 3448750), (620, 3092750), (625, 3068008), (695, 2759000), (712, 2693125), (775, 2474200), (890, 2154500), (1000, 1917505), (1112, 1724375), (1240, 1546375), (1250, 1534004), (1390, 1379500), (1550, 1237100), (1780, 1077250), (2225, 861800), (2500, 767002), (2759, 695000), (2780, 689750), (3100, 618550), (3475, 551800), (3560, 538625), (3875, 494840), (4309, 445000), (4450, 430900), (5000, 383501), (5518, 347500), (5560, 344875), (6200, 309275), (6950, 275900), (7750, 247420), (8618, 222500), (8900, 215450), (11036, 173750), (11125, 172360), (12371, 155000), (13795, 139000), (13900, 137950), (15500, 123710), (17236, 111250), (17375, 110360), (17800, 107725), (19375, 98968), (21545, 89000), (22072, 86875), (22250, 86180), (24742, 77500), (27590, 69500), (27800, 68975), (31000, 61855), (34472, 55625), (34750, 55180), (38750, 49484), (43090, 44500)]