20111256004

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{15199}}^1$

素因数の和:15417

約数の個数: 72

約数和(自身を含む): 42162489600

約数和(自身を除く): 22051233596

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 157, 172, 196, 301, 314, 602, 628, 1099, 1204, 2107, 2198, 4214, 4396, 6751, 7693, 8428, 13502, 15199, 15386, 27004, 30398, 30772, 47257, 60796, 94514, 106393, 189028, 212786, 330799, 425572, 653557, 661598, 744751, 1307114, 1323196, 1489502, 2386243, 2614228, 2979004, 4574899, 4772486, 9149798, 9544972, 16703701, 18299596, 32024293, 33407402, 64048586, 66814804, 102608449, 116925907, 128097172, 205216898, 233851814, 410433796, 467703628, 718259143, 1436518286, 2873036572, 5027814001, 10055628002, 20111256004]

約数ペア:

[(1, 20111256004), (2, 10055628002), (4, 5027814001), (7, 2873036572), (14, 1436518286), (28, 718259143), (43, 467703628), (49, 410433796), (86, 233851814), (98, 205216898), (157, 128097172), (172, 116925907), (196, 102608449), (301, 66814804), (314, 64048586), (602, 33407402), (628, 32024293), (1099, 18299596), (1204, 16703701), (2107, 9544972), (2198, 9149798), (4214, 4772486), (4396, 4574899), (6751, 2979004), (7693, 2614228), (8428, 2386243), (13502, 1489502), (15199, 1323196), (15386, 1307114), (27004, 744751), (30398, 661598), (30772, 653557), (47257, 425572), (60796, 330799), (94514, 212786), (106393, 189028)]