28939520

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{983}}^1$

素因数の和:1027

約数の個数: 72

約数和(自身を含む): 72406656

約数和(自身を除く): 43467136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 920, 983, 1280, 1472, 1840, 1966, 2944, 3680, 3932, 4915, 5888, 7360, 7864, 9830, 14720, 15728, 19660, 22609, 29440, 31456, 39320, 45218, 62912, 78640, 90436, 113045, 125824, 157280, 180872, 226090, 251648, 314560, 361744, 452180, 629120, 723488, 904360, 1258240, 1446976, 1808720, 2893952, 3617440, 5787904, 7234880, 14469760, 28939520]

約数ペア:

[(1, 28939520), (2, 14469760), (4, 7234880), (5, 5787904), (8, 3617440), (10, 2893952), (16, 1808720), (20, 1446976), (23, 1258240), (32, 904360), (40, 723488), (46, 629120), (64, 452180), (80, 361744), (92, 314560), (115, 251648), (128, 226090), (160, 180872), (184, 157280), (230, 125824), (256, 113045), (320, 90436), (368, 78640), (460, 62912), (640, 45218), (736, 39320), (920, 31456), (983, 29440), (1280, 22609), (1472, 19660), (1840, 15728), (1966, 14720), (2944, 9830), (3680, 7864), (3932, 7360), (4915, 5888)]