13246720

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 32376960

約数和(自身を除く): 19130240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 131, 158, 160, 256, 262, 316, 320, 395, 524, 632, 640, 655, 790, 1048, 1264, 1280, 1310, 1580, 2096, 2528, 2620, 3160, 4192, 5056, 5240, 6320, 8384, 10112, 10349, 10480, 12640, 16768, 20224, 20698, 20960, 25280, 33536, 41396, 41920, 50560, 51745, 82792, 83840, 101120, 103490, 165584, 167680, 206980, 331168, 413960, 662336, 827920, 1324672, 1655840, 2649344, 3311680, 6623360, 13246720]

約数ペア:

[(1, 13246720), (2, 6623360), (4, 3311680), (5, 2649344), (8, 1655840), (10, 1324672), (16, 827920), (20, 662336), (32, 413960), (40, 331168), (64, 206980), (79, 167680), (80, 165584), (128, 103490), (131, 101120), (158, 83840), (160, 82792), (256, 51745), (262, 50560), (316, 41920), (320, 41396), (395, 33536), (524, 25280), (632, 20960), (640, 20698), (655, 20224), (790, 16768), (1048, 12640), (1264, 10480), (1280, 10349), (1310, 10112), (1580, 8384), (2096, 6320), (2528, 5240), (2620, 5056), (3160, 4192)]