17920140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{42667}}^1$

素因数の和:42686

約数の個数: 48

約数和(自身を含む): 57345792

約数和(自身を除く): 39425652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 42667, 85334, 128001, 170668, 213335, 256002, 298669, 426670, 512004, 597338, 640005, 853340, 896007, 1194676, 1280010, 1493345, 1792014, 2560020, 2986690, 3584028, 4480035, 5973380, 8960070, 17920140]

約数ペア:

[(1, 17920140), (2, 8960070), (3, 5973380), (4, 4480035), (5, 3584028), (6, 2986690), (7, 2560020), (10, 1792014), (12, 1493345), (14, 1280010), (15, 1194676), (20, 896007), (21, 853340), (28, 640005), (30, 597338), (35, 512004), (42, 426670), (60, 298669), (70, 256002), (84, 213335), (105, 170668), (140, 128001), (210, 85334), (420, 42667)]