19971240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3541}}^1$

素因数の和:3602

約数の個数: 64

約数和(自身を含む): 61205760

約数和(自身を除く): 41234520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3541, 5640, 7082, 10623, 14164, 17705, 21246, 28328, 35410, 42492, 53115, 70820, 84984, 106230, 141640, 166427, 212460, 332854, 424920, 499281, 665708, 832135, 998562, 1331416, 1664270, 1997124, 2496405, 3328540, 3994248, 4992810, 6657080, 9985620, 19971240]

約数ペア:

[(1, 19971240), (2, 9985620), (3, 6657080), (4, 4992810), (5, 3994248), (6, 3328540), (8, 2496405), (10, 1997124), (12, 1664270), (15, 1331416), (20, 998562), (24, 832135), (30, 665708), (40, 499281), (47, 424920), (60, 332854), (94, 212460), (120, 166427), (141, 141640), (188, 106230), (235, 84984), (282, 70820), (376, 53115), (470, 42492), (564, 35410), (705, 28328), (940, 21246), (1128, 17705), (1410, 14164), (1880, 10623), (2820, 7082), (3541, 5640)]