161544100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{41}}^2$

素因数の和:158

約数の個数: 81

約数和(自身を含む): 371273763

約数和(自身を除く): 209729663

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 41, 50, 62, 82, 100, 124, 155, 164, 205, 310, 410, 620, 775, 820, 961, 1025, 1271, 1550, 1681, 1922, 2050, 2542, 3100, 3362, 3844, 4100, 4805, 5084, 6355, 6724, 8405, 9610, 12710, 16810, 19220, 24025, 25420, 31775, 33620, 39401, 42025, 48050, 52111, 63550, 78802, 84050, 96100, 104222, 127100, 157604, 168100, 197005, 208444, 260555, 394010, 521110, 788020, 985025, 1042220, 1302775, 1615441, 1970050, 2605550, 3230882, 3940100, 5211100, 6461764, 8077205, 16154410, 32308820, 40386025, 80772050, 161544100]

約数ペア:

[(1, 161544100), (2, 80772050), (4, 40386025), (5, 32308820), (10, 16154410), (20, 8077205), (25, 6461764), (31, 5211100), (41, 3940100), (50, 3230882), (62, 2605550), (82, 1970050), (100, 1615441), (124, 1302775), (155, 1042220), (164, 985025), (205, 788020), (310, 521110), (410, 394010), (620, 260555), (775, 208444), (820, 197005), (961, 168100), (1025, 157604), (1271, 127100), (1550, 104222), (1681, 96100), (1922, 84050), (2050, 78802), (2542, 63550), (3100, 52111), (3362, 48050), (3844, 42025), (4100, 39401), (4805, 33620), (5084, 31775), (6355, 25420), (6724, 24025), (8405, 19220), (9610, 16810)]