19770320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14537}}^1$

素因数の和:14567

約数の個数: 40

約数和(自身を含む): 48673224

約数和(自身を除く): 28902904

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14537, 29074, 58148, 72685, 116296, 145370, 232592, 247129, 290740, 494258, 581480, 988516, 1162960, 1235645, 1977032, 2471290, 3954064, 4942580, 9885160, 19770320]

約数ペア:

[(1, 19770320), (2, 9885160), (4, 4942580), (5, 3954064), (8, 2471290), (10, 1977032), (16, 1235645), (17, 1162960), (20, 988516), (34, 581480), (40, 494258), (68, 290740), (80, 247129), (85, 232592), (136, 145370), (170, 116296), (272, 72685), (340, 58148), (680, 29074), (1360, 14537)]