164938900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:890

約数の個数: 108

約数和(自身を含む): 427027356

約数和(自身を除く): 262088456

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 49, 50, 70, 82, 98, 100, 140, 164, 175, 196, 205, 245, 287, 350, 410, 490, 574, 700, 820, 821, 980, 1025, 1148, 1225, 1435, 1642, 2009, 2050, 2450, 2870, 3284, 4018, 4100, 4105, 4900, 5740, 5747, 7175, 8036, 8210, 10045, 11494, 14350, 16420, 20090, 20525, 22988, 28700, 28735, 33661, 40180, 40229, 41050, 50225, 57470, 67322, 80458, 82100, 100450, 114940, 134644, 143675, 160916, 168305, 200900, 201145, 235627, 287350, 336610, 402290, 471254, 574700, 673220, 804580, 841525, 942508, 1005725, 1178135, 1649389, 1683050, 2011450, 2356270, 3298778, 3366100, 4022900, 4712540, 5890675, 6597556, 8246945, 11781350, 16493890, 23562700, 32987780, 41234725, 82469450, 164938900]

約数ペア:

[(1, 164938900), (2, 82469450), (4, 41234725), (5, 32987780), (7, 23562700), (10, 16493890), (14, 11781350), (20, 8246945), (25, 6597556), (28, 5890675), (35, 4712540), (41, 4022900), (49, 3366100), (50, 3298778), (70, 2356270), (82, 2011450), (98, 1683050), (100, 1649389), (140, 1178135), (164, 1005725), (175, 942508), (196, 841525), (205, 804580), (245, 673220), (287, 574700), (350, 471254), (410, 402290), (490, 336610), (574, 287350), (700, 235627), (820, 201145), (821, 200900), (980, 168305), (1025, 160916), (1148, 143675), (1225, 134644), (1435, 114940), (1642, 100450), (2009, 82100), (2050, 80458), (2450, 67322), (2870, 57470), (3284, 50225), (4018, 41050), (4100, 40229), (4105, 40180), (4900, 33661), (5740, 28735), (5747, 28700), (7175, 22988), (8036, 20525), (8210, 20090), (10045, 16420), (11494, 14350)]