20736014720

素因数分解:

$2^7\times 5^1\times {\mathrm{32400023}}^1$

素因数の和:32400042

約数の個数: 32

約数和(自身を含む): 49572036720

約数和(自身を除く): 28836022000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32400023, 64800046, 129600092, 162000115, 259200184, 324000230, 518400368, 648000460, 1036800736, 1296000920, 2073601472, 2592001840, 4147202944, 5184003680, 10368007360, 20736014720]

約数ペア:

[(1, 20736014720), (2, 10368007360), (4, 5184003680), (5, 4147202944), (8, 2592001840), (10, 2073601472), (16, 1296000920), (20, 1036800736), (32, 648000460), (40, 518400368), (64, 324000230), (80, 259200184), (128, 162000115), (160, 129600092), (320, 64800046), (640, 32400023)]