164728100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 379142400

約数和(自身を除く): 214414300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 181, 190, 362, 380, 475, 479, 724, 905, 950, 958, 1810, 1900, 1916, 2395, 3439, 3620, 4525, 4790, 6878, 9050, 9101, 9580, 11975, 13756, 17195, 18100, 18202, 23950, 34390, 36404, 45505, 47900, 68780, 85975, 86699, 91010, 171950, 173398, 182020, 227525, 343900, 346796, 433495, 455050, 866990, 910100, 1647281, 1733980, 2167475, 3294562, 4334950, 6589124, 8236405, 8669900, 16472810, 32945620, 41182025, 82364050, 164728100]

約数ペア:

[(1, 164728100), (2, 82364050), (4, 41182025), (5, 32945620), (10, 16472810), (19, 8669900), (20, 8236405), (25, 6589124), (38, 4334950), (50, 3294562), (76, 2167475), (95, 1733980), (100, 1647281), (181, 910100), (190, 866990), (362, 455050), (380, 433495), (475, 346796), (479, 343900), (724, 227525), (905, 182020), (950, 173398), (958, 171950), (1810, 91010), (1900, 86699), (1916, 85975), (2395, 68780), (3439, 47900), (3620, 45505), (4525, 36404), (4790, 34390), (6878, 23950), (9050, 18202), (9101, 18100), (9580, 17195), (11975, 13756)]