20492788390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1\times {\mathrm{6917}}^1$

素因数の和:7477

約数の個数: 64

約数和(自身を含む): 40166461440

約数和(自身を除く): 19673673050

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 503, 589, 1006, 1178, 2515, 2945, 5030, 5890, 6917, 9557, 13834, 15593, 19114, 31186, 34585, 47785, 69170, 77965, 95570, 131423, 155930, 214427, 262846, 296267, 428854, 592534, 657115, 1072135, 1314230, 1481335, 2144270, 2962670, 3479251, 4074113, 6958502, 8148226, 17396255, 20370565, 34792510, 40741130, 66105769, 107856781, 132211538, 215713562, 330528845, 539283905, 661057690, 1078567810, 2049278839, 4098557678, 10246394195, 20492788390]

約数ペア:

[(1, 20492788390), (2, 10246394195), (5, 4098557678), (10, 2049278839), (19, 1078567810), (31, 661057690), (38, 539283905), (62, 330528845), (95, 215713562), (155, 132211538), (190, 107856781), (310, 66105769), (503, 40741130), (589, 34792510), (1006, 20370565), (1178, 17396255), (2515, 8148226), (2945, 6958502), (5030, 4074113), (5890, 3479251), (6917, 2962670), (9557, 2144270), (13834, 1481335), (15593, 1314230), (19114, 1072135), (31186, 657115), (34585, 592534), (47785, 428854), (69170, 296267), (77965, 262846), (95570, 214427), (131423, 155930)]