81400782680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15300899}}^1$

素因数の和:15300936

約数の個数: 64

約数和(自身を含む): 220332960000

約数和(自身を除く): 138932177320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 15300899, 30601798, 61203596, 76504495, 107106293, 122407192, 153008990, 214212586, 290717081, 306017980, 428425172, 535531465, 581434162, 612035960, 856850344, 1071062930, 1162868324, 1453585405, 2035019567, 2142125860, 2325736648, 2907170810, 4070039134, 4284251720, 5814341620, 8140078268, 10175097835, 11628683240, 16280156536, 20350195670, 40700391340, 81400782680]

約数ペア:

[(1, 81400782680), (2, 40700391340), (4, 20350195670), (5, 16280156536), (7, 11628683240), (8, 10175097835), (10, 8140078268), (14, 5814341620), (19, 4284251720), (20, 4070039134), (28, 2907170810), (35, 2325736648), (38, 2142125860), (40, 2035019567), (56, 1453585405), (70, 1162868324), (76, 1071062930), (95, 856850344), (133, 612035960), (140, 581434162), (152, 535531465), (190, 428425172), (266, 306017980), (280, 290717081), (380, 214212586), (532, 153008990), (665, 122407192), (760, 107106293), (1064, 76504495), (1330, 61203596), (2660, 30601798), (5320, 15300899)]