161567377900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5171}}^1\times {\mathrm{10079}}^1$

素因数の和:15295

約数の個数: 72

約数和(自身を含む): 362016829440

約数和(自身を除く): 200449451540

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 5171, 10079, 10342, 20158, 20684, 25855, 40316, 50395, 51710, 100790, 103420, 129275, 160301, 201580, 251975, 258550, 312449, 320602, 503950, 517100, 624898, 641204, 801505, 1007900, 1249796, 1562245, 1603010, 3124490, 3206020, 4007525, 6248980, 7811225, 8015050, 15622450, 16030100, 31244900, 52118509, 104237018, 208474036, 260592545, 521185090, 1042370180, 1302962725, 1615673779, 2605925450, 3231347558, 5211850900, 6462695116, 8078368895, 16156737790, 32313475580, 40391844475, 80783688950, 161567377900]

約数ペア:

[(1, 161567377900), (2, 80783688950), (4, 40391844475), (5, 32313475580), (10, 16156737790), (20, 8078368895), (25, 6462695116), (31, 5211850900), (50, 3231347558), (62, 2605925450), (100, 1615673779), (124, 1302962725), (155, 1042370180), (310, 521185090), (620, 260592545), (775, 208474036), (1550, 104237018), (3100, 52118509), (5171, 31244900), (10079, 16030100), (10342, 15622450), (20158, 8015050), (20684, 7811225), (25855, 6248980), (40316, 4007525), (50395, 3206020), (51710, 3124490), (100790, 1603010), (103420, 1562245), (129275, 1249796), (160301, 1007900), (201580, 801505), (251975, 641204), (258550, 624898), (312449, 517100), (320602, 503950)]