20218588304

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1481}}^1\times {\mathrm{19843}}^1$

素因数の和:21375

約数の個数: 40

約数和(自身を含む): 40113614112

約数和(自身を除く): 19895025808

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1481, 2962, 5924, 11848, 19843, 23696, 39686, 63683, 79372, 127366, 158744, 254732, 317488, 509464, 853249, 1018928, 1706498, 3412996, 6825992, 13651984, 29387483, 58774966, 117549932, 235099864, 470199728, 1263661769, 2527323538, 5054647076, 10109294152, 20218588304]

約数ペア:

[(1, 20218588304), (2, 10109294152), (4, 5054647076), (8, 2527323538), (16, 1263661769), (43, 470199728), (86, 235099864), (172, 117549932), (344, 58774966), (688, 29387483), (1481, 13651984), (2962, 6825992), (5924, 3412996), (11848, 1706498), (19843, 1018928), (23696, 853249), (39686, 509464), (63683, 317488), (79372, 254732), (127366, 158744)]