20970720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14563}}^1$

素因数の和:14584

約数の個数: 72

約数和(自身を含む): 71567496

約数和(自身を除く): 50596776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14563, 29126, 43689, 58252, 72815, 87378, 116504, 131067, 145630, 174756, 218445, 233008, 262134, 291260, 349512, 436890, 466016, 524268, 582520, 655335, 699024, 873780, 1048536, 1165040, 1310670, 1398048, 1747560, 2097072, 2330080, 2621340, 3495120, 4194144, 5242680, 6990240, 10485360, 20970720]

約数ペア:

[(1, 20970720), (2, 10485360), (3, 6990240), (4, 5242680), (5, 4194144), (6, 3495120), (8, 2621340), (9, 2330080), (10, 2097072), (12, 1747560), (15, 1398048), (16, 1310670), (18, 1165040), (20, 1048536), (24, 873780), (30, 699024), (32, 655335), (36, 582520), (40, 524268), (45, 466016), (48, 436890), (60, 349512), (72, 291260), (80, 262134), (90, 233008), (96, 218445), (120, 174756), (144, 145630), (160, 131067), (180, 116504), (240, 87378), (288, 72815), (360, 58252), (480, 43689), (720, 29126), (1440, 14563)]