20122921520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{773}}^1\times {\mathrm{25031}}^1$

素因数の和:25830

約数の個数: 80

約数和(自身を含む): 50451895872

約数和(自身を除く): 30328974352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 773, 1040, 1546, 3092, 3865, 6184, 7730, 10049, 12368, 15460, 20098, 25031, 30920, 40196, 50062, 50245, 61840, 80392, 100124, 100490, 125155, 160784, 200248, 200980, 250310, 325403, 400496, 401960, 500620, 650806, 803920, 1001240, 1301612, 1627015, 2002480, 2603224, 3254030, 5206448, 6508060, 13016120, 19348963, 26032240, 38697926, 77395852, 96744815, 154791704, 193489630, 251536519, 309583408, 386979260, 503073038, 773958520, 1006146076, 1257682595, 1547917040, 2012292152, 2515365190, 4024584304, 5030730380, 10061460760, 20122921520]

約数ペア:

[(1, 20122921520), (2, 10061460760), (4, 5030730380), (5, 4024584304), (8, 2515365190), (10, 2012292152), (13, 1547917040), (16, 1257682595), (20, 1006146076), (26, 773958520), (40, 503073038), (52, 386979260), (65, 309583408), (80, 251536519), (104, 193489630), (130, 154791704), (208, 96744815), (260, 77395852), (520, 38697926), (773, 26032240), (1040, 19348963), (1546, 13016120), (3092, 6508060), (3865, 5206448), (6184, 3254030), (7730, 2603224), (10049, 2002480), (12368, 1627015), (15460, 1301612), (20098, 1001240), (25031, 803920), (30920, 650806), (40196, 500620), (50062, 401960), (50245, 400496), (61840, 325403), (80392, 250310), (100124, 200980), (100490, 200248), (125155, 160784)]