31392640

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 75741120

約数和(自身を除く): 44348480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 271, 320, 362, 542, 640, 724, 905, 1084, 1355, 1448, 1810, 2168, 2710, 2896, 3620, 4336, 5420, 5792, 7240, 8672, 10840, 11584, 14480, 17344, 21680, 23168, 28960, 34688, 43360, 49051, 57920, 86720, 98102, 115840, 173440, 196204, 245255, 392408, 490510, 784816, 981020, 1569632, 1962040, 3139264, 3924080, 6278528, 7848160, 15696320, 31392640]

約数ペア:

[(1, 31392640), (2, 15696320), (4, 7848160), (5, 6278528), (8, 3924080), (10, 3139264), (16, 1962040), (20, 1569632), (32, 981020), (40, 784816), (64, 490510), (80, 392408), (128, 245255), (160, 196204), (181, 173440), (271, 115840), (320, 98102), (362, 86720), (542, 57920), (640, 49051), (724, 43360), (905, 34688), (1084, 28960), (1355, 23168), (1448, 21680), (1810, 17344), (2168, 14480), (2710, 11584), (2896, 10840), (3620, 8672), (4336, 7240), (5420, 5792)]