1983721000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:860

約数の個数: 128

約数和(自身を含む): 4852224000

約数和(自身を除く): 2868503000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 89, 100, 124, 125, 155, 178, 200, 248, 250, 310, 356, 445, 500, 620, 712, 719, 775, 890, 1000, 1240, 1438, 1550, 1780, 2225, 2759, 2876, 3100, 3560, 3595, 3875, 4450, 5518, 5752, 6200, 7190, 7750, 8900, 11036, 11125, 13795, 14380, 15500, 17800, 17975, 22072, 22250, 22289, 27590, 28760, 31000, 35950, 44500, 44578, 55180, 63991, 68975, 71900, 89000, 89156, 89875, 110360, 111445, 127982, 137950, 143800, 178312, 179750, 222890, 255964, 275900, 319955, 344875, 359500, 445780, 511928, 551800, 557225, 639910, 689750, 719000, 891560, 1114450, 1279820, 1379500, 1599775, 1983721, 2228900, 2559640, 2759000, 2786125, 3199550, 3967442, 4457800, 5572250, 6399100, 7934884, 7998875, 9918605, 11144500, 12798200, 15869768, 15997750, 19837210, 22289000, 31995500, 39674420, 49593025, 63991000, 79348840, 99186050, 198372100, 247965125, 396744200, 495930250, 991860500, 1983721000]

約数ペア:

[(1, 1983721000), (2, 991860500), (4, 495930250), (5, 396744200), (8, 247965125), (10, 198372100), (20, 99186050), (25, 79348840), (31, 63991000), (40, 49593025), (50, 39674420), (62, 31995500), (89, 22289000), (100, 19837210), (124, 15997750), (125, 15869768), (155, 12798200), (178, 11144500), (200, 9918605), (248, 7998875), (250, 7934884), (310, 6399100), (356, 5572250), (445, 4457800), (500, 3967442), (620, 3199550), (712, 2786125), (719, 2759000), (775, 2559640), (890, 2228900), (1000, 1983721), (1240, 1599775), (1438, 1379500), (1550, 1279820), (1780, 1114450), (2225, 891560), (2759, 719000), (2876, 689750), (3100, 639910), (3560, 557225), (3595, 551800), (3875, 511928), (4450, 445780), (5518, 359500), (5752, 344875), (6200, 319955), (7190, 275900), (7750, 255964), (8900, 222890), (11036, 179750), (11125, 178312), (13795, 143800), (14380, 137950), (15500, 127982), (17800, 111445), (17975, 110360), (22072, 89875), (22250, 89156), (22289, 89000), (27590, 71900), (28760, 68975), (31000, 63991), (35950, 55180), (44500, 44578)]