1663505840

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{114883}}^1$

素因数の和:115077

約数の個数: 40

約数和(自身を含む): 3889053168

約数和(自身を除く): 2225547328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 114883, 229766, 459532, 574415, 919064, 1148830, 1838128, 2297660, 4595320, 9190640, 20793823, 41587646, 83175292, 103969115, 166350584, 207938230, 332701168, 415876460, 831752920, 1663505840]

約数ペア:

[(1, 1663505840), (2, 831752920), (4, 415876460), (5, 332701168), (8, 207938230), (10, 166350584), (16, 103969115), (20, 83175292), (40, 41587646), (80, 20793823), (181, 9190640), (362, 4595320), (724, 2297660), (905, 1838128), (1448, 1148830), (1810, 919064), (2896, 574415), (3620, 459532), (7240, 229766), (14480, 114883)]