25811865

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 51435648

約数和(自身を除く): 25623783

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 81, 85, 115, 135, 153, 163, 207, 255, 345, 391, 405, 459, 489, 621, 765, 815, 1035, 1173, 1377, 1467, 1863, 1955, 2295, 2445, 2771, 3105, 3519, 3749, 4401, 5865, 6885, 7335, 8313, 9315, 10557, 11247, 13203, 13855, 17595, 18745, 22005, 24939, 31671, 33741, 41565, 52785, 56235, 63733, 66015, 74817, 101223, 124695, 158355, 168705, 191199, 224451, 303669, 318665, 374085, 506115, 573597, 955995, 1122255, 1518345, 1720791, 2867985, 5162373, 8603955, 25811865]

約数ペア:

[(1, 25811865), (3, 8603955), (5, 5162373), (9, 2867985), (15, 1720791), (17, 1518345), (23, 1122255), (27, 955995), (45, 573597), (51, 506115), (69, 374085), (81, 318665), (85, 303669), (115, 224451), (135, 191199), (153, 168705), (163, 158355), (207, 124695), (255, 101223), (345, 74817), (391, 66015), (405, 63733), (459, 56235), (489, 52785), (621, 41565), (765, 33741), (815, 31671), (1035, 24939), (1173, 22005), (1377, 18745), (1467, 17595), (1863, 13855), (1955, 13203), (2295, 11247), (2445, 10557), (2771, 9315), (3105, 8313), (3519, 7335), (3749, 6885), (4401, 5865)]