1896812500

素因数分解:

$2^2\times 5^6\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 168

約数和(自身を含む): 4724939520

約数和(自身を除く): 2828127020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 89, 100, 110, 124, 125, 155, 178, 220, 250, 275, 310, 341, 356, 445, 500, 550, 620, 625, 682, 775, 890, 979, 1100, 1250, 1364, 1375, 1550, 1705, 1780, 1958, 2225, 2500, 2750, 2759, 3100, 3125, 3410, 3875, 3916, 4450, 4895, 5500, 5518, 6250, 6820, 6875, 7750, 8525, 8900, 9790, 11036, 11125, 12500, 13750, 13795, 15500, 15625, 17050, 19375, 19580, 22250, 24475, 27500, 27590, 30349, 31250, 34100, 34375, 38750, 42625, 44500, 48950, 55180, 55625, 60698, 62500, 68750, 68975, 77500, 85250, 96875, 97900, 111250, 121396, 122375, 137500, 137950, 151745, 170500, 171875, 193750, 213125, 222500, 244750, 275900, 278125, 303490, 343750, 344875, 387500, 426250, 484375, 489500, 556250, 606980, 611875, 687500, 689750, 758725, 852500, 968750, 1065625, 1112500, 1223750, 1379500, 1390625, 1517450, 1724375, 1937500, 2131250, 2447500, 2781250, 3034900, 3059375, 3448750, 3793625, 4262500, 5328125, 5562500, 6118750, 6897500, 7587250, 8621875, 10656250, 12237500, 15174500, 15296875, 17243750, 18968125, 21312500, 30593750, 34487500, 37936250, 43109375, 61187500, 75872500, 86218750, 94840625, 172437500, 189681250, 379362500, 474203125, 948406250, 1896812500]

約数ペア:

[(1, 1896812500), (2, 948406250), (4, 474203125), (5, 379362500), (10, 189681250), (11, 172437500), (20, 94840625), (22, 86218750), (25, 75872500), (31, 61187500), (44, 43109375), (50, 37936250), (55, 34487500), (62, 30593750), (89, 21312500), (100, 18968125), (110, 17243750), (124, 15296875), (125, 15174500), (155, 12237500), (178, 10656250), (220, 8621875), (250, 7587250), (275, 6897500), (310, 6118750), (341, 5562500), (356, 5328125), (445, 4262500), (500, 3793625), (550, 3448750), (620, 3059375), (625, 3034900), (682, 2781250), (775, 2447500), (890, 2131250), (979, 1937500), (1100, 1724375), (1250, 1517450), (1364, 1390625), (1375, 1379500), (1550, 1223750), (1705, 1112500), (1780, 1065625), (1958, 968750), (2225, 852500), (2500, 758725), (2750, 689750), (2759, 687500), (3100, 611875), (3125, 606980), (3410, 556250), (3875, 489500), (3916, 484375), (4450, 426250), (4895, 387500), (5500, 344875), (5518, 343750), (6250, 303490), (6820, 278125), (6875, 275900), (7750, 244750), (8525, 222500), (8900, 213125), (9790, 193750), (11036, 171875), (11125, 170500), (12500, 151745), (13750, 137950), (13795, 137500), (15500, 122375), (15625, 121396), (17050, 111250), (19375, 97900), (19580, 96875), (22250, 85250), (24475, 77500), (27500, 68975), (27590, 68750), (30349, 62500), (31250, 60698), (34100, 55625), (34375, 55180), (38750, 48950), (42625, 44500)]