81416368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 183738240

約数和(自身を除く): 102321872

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 97, 152, 176, 194, 209, 251, 304, 388, 418, 502, 776, 836, 1004, 1067, 1552, 1672, 1843, 2008, 2134, 2761, 3344, 3686, 4016, 4268, 4769, 5522, 7372, 8536, 9538, 11044, 14744, 17072, 19076, 20273, 22088, 24347, 29488, 38152, 40546, 44176, 48694, 52459, 76304, 81092, 97388, 104918, 162184, 194776, 209836, 267817, 324368, 389552, 419672, 462593, 535634, 839344, 925186, 1071268, 1850372, 2142536, 3700744, 4285072, 5088523, 7401488, 10177046, 20354092, 40708184, 81416368]

約数ペア:

[(1, 81416368), (2, 40708184), (4, 20354092), (8, 10177046), (11, 7401488), (16, 5088523), (19, 4285072), (22, 3700744), (38, 2142536), (44, 1850372), (76, 1071268), (88, 925186), (97, 839344), (152, 535634), (176, 462593), (194, 419672), (209, 389552), (251, 324368), (304, 267817), (388, 209836), (418, 194776), (502, 162184), (776, 104918), (836, 97388), (1004, 81092), (1067, 76304), (1552, 52459), (1672, 48694), (1843, 44176), (2008, 40546), (2134, 38152), (2761, 29488), (3344, 24347), (3686, 22088), (4016, 20273), (4268, 19076), (4769, 17072), (5522, 14744), (7372, 11044), (8536, 9538)]