205960900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 108

約数和(自身を含む): 483857920

約数和(自身を除く): 277897020

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 79, 100, 116, 124, 145, 155, 158, 290, 310, 316, 395, 580, 620, 725, 775, 790, 841, 899, 1450, 1550, 1580, 1682, 1798, 1975, 2291, 2449, 2900, 3100, 3364, 3596, 3950, 4205, 4495, 4582, 4898, 7900, 8410, 8990, 9164, 9796, 11455, 12245, 16820, 17980, 21025, 22475, 22910, 24490, 26071, 42050, 44950, 45820, 48980, 52142, 57275, 61225, 66439, 71021, 84100, 89900, 104284, 114550, 122450, 130355, 132878, 142042, 229100, 244900, 260710, 265756, 284084, 332195, 355105, 521420, 651775, 664390, 710210, 1303550, 1328780, 1420420, 1660975, 1775525, 2059609, 2607100, 3321950, 3551050, 4119218, 6643900, 7102100, 8238436, 10298045, 20596090, 41192180, 51490225, 102980450, 205960900]

約数ペア:

[(1, 205960900), (2, 102980450), (4, 51490225), (5, 41192180), (10, 20596090), (20, 10298045), (25, 8238436), (29, 7102100), (31, 6643900), (50, 4119218), (58, 3551050), (62, 3321950), (79, 2607100), (100, 2059609), (116, 1775525), (124, 1660975), (145, 1420420), (155, 1328780), (158, 1303550), (290, 710210), (310, 664390), (316, 651775), (395, 521420), (580, 355105), (620, 332195), (725, 284084), (775, 265756), (790, 260710), (841, 244900), (899, 229100), (1450, 142042), (1550, 132878), (1580, 130355), (1682, 122450), (1798, 114550), (1975, 104284), (2291, 89900), (2449, 84100), (2900, 71021), (3100, 66439), (3364, 61225), (3596, 57275), (3950, 52142), (4205, 48980), (4495, 45820), (4582, 44950), (4898, 42050), (7900, 26071), (8410, 24490), (8990, 22910), (9164, 22475), (9796, 21025), (11455, 17980), (12245, 16820)]