78650000

素因数分解:

$2^4\times 5^5\times {\mathrm{11}}^2\times {\mathrm{13}}^1$

素因数の和:68

約数の個数: 180

約数和(自身を含む): 225462132

約数和(自身を除く): 146812132

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 121, 125, 130, 143, 176, 200, 208, 220, 242, 250, 260, 275, 286, 325, 400, 440, 484, 500, 520, 550, 572, 605, 625, 650, 715, 880, 968, 1000, 1040, 1100, 1144, 1210, 1250, 1300, 1375, 1430, 1573, 1625, 1936, 2000, 2200, 2288, 2420, 2500, 2600, 2750, 2860, 3025, 3125, 3146, 3250, 3575, 4400, 4840, 5000, 5200, 5500, 5720, 6050, 6250, 6292, 6500, 6875, 7150, 7865, 8125, 9680, 10000, 11000, 11440, 12100, 12500, 12584, 13000, 13750, 14300, 15125, 15730, 16250, 17875, 22000, 24200, 25000, 25168, 26000, 27500, 28600, 30250, 31460, 32500, 34375, 35750, 39325, 40625, 48400, 50000, 55000, 57200, 60500, 62920, 65000, 68750, 71500, 75625, 78650, 81250, 89375, 110000, 121000, 125840, 130000, 137500, 143000, 151250, 157300, 162500, 178750, 196625, 242000, 275000, 286000, 302500, 314600, 325000, 357500, 378125, 393250, 446875, 550000, 605000, 629200, 650000, 715000, 756250, 786500, 893750, 983125, 1210000, 1430000, 1512500, 1573000, 1787500, 1966250, 3025000, 3146000, 3575000, 3932500, 4915625, 6050000, 7150000, 7865000, 9831250, 15730000, 19662500, 39325000, 78650000]

約数ペア:

[(1, 78650000), (2, 39325000), (4, 19662500), (5, 15730000), (8, 9831250), (10, 7865000), (11, 7150000), (13, 6050000), (16, 4915625), (20, 3932500), (22, 3575000), (25, 3146000), (26, 3025000), (40, 1966250), (44, 1787500), (50, 1573000), (52, 1512500), (55, 1430000), (65, 1210000), (80, 983125), (88, 893750), (100, 786500), (104, 756250), (110, 715000), (121, 650000), (125, 629200), (130, 605000), (143, 550000), (176, 446875), (200, 393250), (208, 378125), (220, 357500), (242, 325000), (250, 314600), (260, 302500), (275, 286000), (286, 275000), (325, 242000), (400, 196625), (440, 178750), (484, 162500), (500, 157300), (520, 151250), (550, 143000), (572, 137500), (605, 130000), (625, 125840), (650, 121000), (715, 110000), (880, 89375), (968, 81250), (1000, 78650), (1040, 75625), (1100, 71500), (1144, 68750), (1210, 65000), (1250, 62920), (1300, 60500), (1375, 57200), (1430, 55000), (1573, 50000), (1625, 48400), (1936, 40625), (2000, 39325), (2200, 35750), (2288, 34375), (2420, 32500), (2500, 31460), (2600, 30250), (2750, 28600), (2860, 27500), (3025, 26000), (3125, 25168), (3146, 25000), (3250, 24200), (3575, 22000), (4400, 17875), (4840, 16250), (5000, 15730), (5200, 15125), (5500, 14300), (5720, 13750), (6050, 13000), (6250, 12584), (6292, 12500), (6500, 12100), (6875, 11440), (7150, 11000), (7865, 10000), (8125, 9680)]