21222086080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{40169}}^1$

素因数の和:40326

約数の個数: 112

約数和(自身を含む): 54852295680

約数和(自身を除く): 33630209600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 127, 130, 160, 208, 254, 260, 320, 416, 508, 520, 635, 832, 1016, 1040, 1270, 1651, 2032, 2080, 2540, 3302, 4064, 4160, 5080, 6604, 8128, 8255, 10160, 13208, 16510, 20320, 26416, 33020, 40169, 40640, 52832, 66040, 80338, 105664, 132080, 160676, 200845, 264160, 321352, 401690, 522197, 528320, 642704, 803380, 1044394, 1285408, 1606760, 2088788, 2570816, 2610985, 3213520, 4177576, 5101463, 5221970, 6427040, 8355152, 10202926, 10443940, 12854080, 16710304, 20405852, 20887880, 25507315, 33420608, 40811704, 41775760, 51014630, 66319019, 81623408, 83551520, 102029260, 132638038, 163246816, 167103040, 204058520, 265276076, 326493632, 331595095, 408117040, 530552152, 663190190, 816234080, 1061104304, 1326380380, 1632468160, 2122208608, 2652760760, 4244417216, 5305521520, 10611043040, 21222086080]

約数ペア:

[(1, 21222086080), (2, 10611043040), (4, 5305521520), (5, 4244417216), (8, 2652760760), (10, 2122208608), (13, 1632468160), (16, 1326380380), (20, 1061104304), (26, 816234080), (32, 663190190), (40, 530552152), (52, 408117040), (64, 331595095), (65, 326493632), (80, 265276076), (104, 204058520), (127, 167103040), (130, 163246816), (160, 132638038), (208, 102029260), (254, 83551520), (260, 81623408), (320, 66319019), (416, 51014630), (508, 41775760), (520, 40811704), (635, 33420608), (832, 25507315), (1016, 20887880), (1040, 20405852), (1270, 16710304), (1651, 12854080), (2032, 10443940), (2080, 10202926), (2540, 8355152), (3302, 6427040), (4064, 5221970), (4160, 5101463), (5080, 4177576), (6604, 3213520), (8128, 2610985), (8255, 2570816), (10160, 2088788), (13208, 1606760), (16510, 1285408), (20320, 1044394), (26416, 803380), (33020, 642704), (40169, 528320), (40640, 522197), (52832, 401690), (66040, 321352), (80338, 264160), (105664, 200845), (132080, 160676)]