920003120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{3467}}^1$

素因数の和:3618

約数の個数: 80

約数和(自身を含む): 2229285888

約数和(自身を除く): 1309282768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 107, 124, 155, 214, 248, 310, 428, 496, 535, 620, 856, 1070, 1240, 1712, 2140, 2480, 3317, 3467, 4280, 6634, 6934, 8560, 13268, 13868, 16585, 17335, 26536, 27736, 33170, 34670, 53072, 55472, 66340, 69340, 107477, 132680, 138680, 214954, 265360, 277360, 370969, 429908, 537385, 741938, 859816, 1074770, 1483876, 1719632, 1854845, 2149540, 2967752, 3709690, 4299080, 5935504, 7419380, 8598160, 11500039, 14838760, 23000078, 29677520, 46000156, 57500195, 92000312, 115000390, 184000624, 230000780, 460001560, 920003120]

約数ペア:

[(1, 920003120), (2, 460001560), (4, 230000780), (5, 184000624), (8, 115000390), (10, 92000312), (16, 57500195), (20, 46000156), (31, 29677520), (40, 23000078), (62, 14838760), (80, 11500039), (107, 8598160), (124, 7419380), (155, 5935504), (214, 4299080), (248, 3709690), (310, 2967752), (428, 2149540), (496, 1854845), (535, 1719632), (620, 1483876), (856, 1074770), (1070, 859816), (1240, 741938), (1712, 537385), (2140, 429908), (2480, 370969), (3317, 277360), (3467, 265360), (4280, 214954), (6634, 138680), (6934, 132680), (8560, 107477), (13268, 69340), (13868, 66340), (16585, 55472), (17335, 53072), (26536, 34670), (27736, 33170)]