21730320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30181}}^1$

素因数の和:30200

約数の個数: 60

約数和(自身を含む): 72980076

約数和(自身を除く): 51249756

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30181, 60362, 90543, 120724, 150905, 181086, 241448, 271629, 301810, 362172, 452715, 482896, 543258, 603620, 724344, 905430, 1086516, 1207240, 1358145, 1448688, 1810860, 2173032, 2414480, 2716290, 3621720, 4346064, 5432580, 7243440, 10865160, 21730320]

約数ペア:

[(1, 21730320), (2, 10865160), (3, 7243440), (4, 5432580), (5, 4346064), (6, 3621720), (8, 2716290), (9, 2414480), (10, 2173032), (12, 1810860), (15, 1448688), (16, 1358145), (18, 1207240), (20, 1086516), (24, 905430), (30, 724344), (36, 603620), (40, 543258), (45, 482896), (48, 452715), (60, 362172), (72, 301810), (80, 271629), (90, 241448), (120, 181086), (144, 150905), (180, 120724), (240, 90543), (360, 60362), (720, 30181)]