19707870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7219}}^1$

素因数の和:7249

約数の個数: 64

約数和(自身を含む): 58222080

約数和(自身を除く): 38514210

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7219, 14438, 21657, 36095, 43314, 50533, 72190, 93847, 101066, 108285, 151599, 187694, 216570, 252665, 281541, 303198, 469235, 505330, 563082, 656929, 757995, 938470, 1313858, 1407705, 1515990, 1970787, 2815410, 3284645, 3941574, 6569290, 9853935, 19707870]

約数ペア:

[(1, 19707870), (2, 9853935), (3, 6569290), (5, 3941574), (6, 3284645), (7, 2815410), (10, 1970787), (13, 1515990), (14, 1407705), (15, 1313858), (21, 938470), (26, 757995), (30, 656929), (35, 563082), (39, 505330), (42, 469235), (65, 303198), (70, 281541), (78, 252665), (91, 216570), (105, 187694), (130, 151599), (182, 108285), (195, 101066), (210, 93847), (273, 72190), (390, 50533), (455, 43314), (546, 36095), (910, 21657), (1365, 14438), (2730, 7219)]