20807291264

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{1009}}^1\times {\mathrm{5197}}^1$

素因数の和:6251

約数の個数: 64

約数和(自身を含む): 42839836800

約数和(自身を除く): 22032545536

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1009, 1984, 2018, 3968, 4036, 5197, 8072, 10394, 16144, 20788, 31279, 32288, 41576, 62558, 64576, 83152, 125116, 129152, 161107, 166304, 250232, 322214, 332608, 500464, 644428, 665216, 1000928, 1288856, 2001856, 2577712, 4003712, 5155424, 5243773, 10310848, 10487546, 20621696, 20975092, 41950184, 83900368, 162556963, 167800736, 325113926, 335601472, 650227852, 671202944, 1300455704, 2600911408, 5201822816, 10403645632, 20807291264]

約数ペア:

[(1, 20807291264), (2, 10403645632), (4, 5201822816), (8, 2600911408), (16, 1300455704), (31, 671202944), (32, 650227852), (62, 335601472), (64, 325113926), (124, 167800736), (128, 162556963), (248, 83900368), (496, 41950184), (992, 20975092), (1009, 20621696), (1984, 10487546), (2018, 10310848), (3968, 5243773), (4036, 5155424), (5197, 4003712), (8072, 2577712), (10394, 2001856), (16144, 1288856), (20788, 1000928), (31279, 665216), (32288, 644428), (41576, 500464), (62558, 332608), (64576, 322214), (83152, 250232), (125116, 166304), (129152, 161107)]