164786020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{929}}^1$

素因数の和:1133

約数の個数: 72

約数和(自身を含む): 405208440

約数和(自身を除く): 240422420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 181, 196, 245, 362, 490, 724, 905, 929, 980, 1267, 1810, 1858, 2534, 3620, 3716, 4645, 5068, 6335, 6503, 8869, 9290, 12670, 13006, 17738, 18580, 25340, 26012, 32515, 35476, 44345, 45521, 65030, 88690, 91042, 130060, 168149, 177380, 182084, 227605, 336298, 455210, 672596, 840745, 910420, 1177043, 1681490, 2354086, 3362980, 4708172, 5885215, 8239301, 11770430, 16478602, 23540860, 32957204, 41196505, 82393010, 164786020]

約数ペア:

[(1, 164786020), (2, 82393010), (4, 41196505), (5, 32957204), (7, 23540860), (10, 16478602), (14, 11770430), (20, 8239301), (28, 5885215), (35, 4708172), (49, 3362980), (70, 2354086), (98, 1681490), (140, 1177043), (181, 910420), (196, 840745), (245, 672596), (362, 455210), (490, 336298), (724, 227605), (905, 182084), (929, 177380), (980, 168149), (1267, 130060), (1810, 91042), (1858, 88690), (2534, 65030), (3620, 45521), (3716, 44345), (4645, 35476), (5068, 32515), (6335, 26012), (6503, 25340), (8869, 18580), (9290, 17738), (12670, 13006)]