172256315

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 275097600

約数和(自身を除く): 102841285

約数列:

[1, 5, 7, 11, 23, 35, 49, 55, 77, 115, 161, 245, 253, 343, 385, 397, 539, 805, 1127, 1265, 1715, 1771, 1985, 2695, 2779, 3773, 4367, 5635, 7889, 8855, 9131, 12397, 13895, 18865, 19453, 21835, 30569, 39445, 45655, 61985, 63917, 86779, 97265, 100441, 136171, 152845, 213983, 319585, 433895, 447419, 502205, 680855, 703087, 1069915, 1497881, 2237095, 3131933, 3515435, 4921609, 7489405, 15659665, 24608045, 34451263, 172256315]

約数ペア:

[(1, 172256315), (5, 34451263), (7, 24608045), (11, 15659665), (23, 7489405), (35, 4921609), (49, 3515435), (55, 3131933), (77, 2237095), (115, 1497881), (161, 1069915), (245, 703087), (253, 680855), (343, 502205), (385, 447419), (397, 433895), (539, 319585), (805, 213983), (1127, 152845), (1265, 136171), (1715, 100441), (1771, 97265), (1985, 86779), (2695, 63917), (2779, 61985), (3773, 45655), (4367, 39445), (5635, 30569), (7889, 21835), (8855, 19453), (9131, 18865), (12397, 13895)]