20172117220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1\times {\mathrm{1213}}^1$

素因数の和:1757

約数の個数: 96

約数和(自身を含む): 45154972800

約数和(自身を除く): 24982855580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 409, 428, 535, 818, 1070, 1213, 1636, 2033, 2045, 2140, 2426, 4066, 4090, 4852, 6065, 7771, 8132, 8180, 10165, 12130, 15542, 20330, 23047, 24260, 31084, 38855, 40660, 43763, 46094, 77710, 87526, 92188, 115235, 129791, 155420, 175052, 218815, 230470, 259582, 437630, 460940, 496117, 519164, 648955, 831497, 875260, 992234, 1297910, 1662994, 1984468, 2466029, 2480585, 2595820, 3325988, 4157485, 4932058, 4961170, 8314970, 9426223, 9864116, 9922340, 12330145, 16629940, 18852446, 24660290, 37704892, 47131115, 49320580, 53084519, 94262230, 106169038, 188524460, 212338076, 265422595, 530845190, 1008605861, 1061690380, 2017211722, 4034423444, 5043029305, 10086058610, 20172117220]

約数ペア:

[(1, 20172117220), (2, 10086058610), (4, 5043029305), (5, 4034423444), (10, 2017211722), (19, 1061690380), (20, 1008605861), (38, 530845190), (76, 265422595), (95, 212338076), (107, 188524460), (190, 106169038), (214, 94262230), (380, 53084519), (409, 49320580), (428, 47131115), (535, 37704892), (818, 24660290), (1070, 18852446), (1213, 16629940), (1636, 12330145), (2033, 9922340), (2045, 9864116), (2140, 9426223), (2426, 8314970), (4066, 4961170), (4090, 4932058), (4852, 4157485), (6065, 3325988), (7771, 2595820), (8132, 2480585), (8180, 2466029), (10165, 1984468), (12130, 1662994), (15542, 1297910), (20330, 992234), (23047, 875260), (24260, 831497), (31084, 648955), (38855, 519164), (40660, 496117), (43763, 460940), (46094, 437630), (77710, 259582), (87526, 230470), (92188, 218815), (115235, 175052), (129791, 155420)]