19898760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23689}}^1$

素因数の和:23710

約数の個数: 64

約数和(自身を含む): 68227200

約数和(自身を除く): 48328440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23689, 47378, 71067, 94756, 118445, 142134, 165823, 189512, 236890, 284268, 331646, 355335, 473780, 497469, 568536, 663292, 710670, 829115, 947560, 994938, 1326584, 1421340, 1658230, 1989876, 2487345, 2842680, 3316460, 3979752, 4974690, 6632920, 9949380, 19898760]

約数ペア:

[(1, 19898760), (2, 9949380), (3, 6632920), (4, 4974690), (5, 3979752), (6, 3316460), (7, 2842680), (8, 2487345), (10, 1989876), (12, 1658230), (14, 1421340), (15, 1326584), (20, 994938), (21, 947560), (24, 829115), (28, 710670), (30, 663292), (35, 568536), (40, 497469), (42, 473780), (56, 355335), (60, 331646), (70, 284268), (84, 236890), (105, 189512), (120, 165823), (140, 142134), (168, 118445), (210, 94756), (280, 71067), (420, 47378), (840, 23689)]