239165140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 538965504

約数和(自身を除く): 299800364

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 61, 86, 94, 97, 122, 172, 188, 194, 215, 235, 244, 305, 388, 430, 470, 485, 610, 860, 940, 970, 1220, 1940, 2021, 2623, 2867, 4042, 4171, 4559, 5246, 5734, 5917, 8084, 8342, 9118, 10105, 10492, 11468, 11834, 13115, 14335, 16684, 18236, 20210, 20855, 22795, 23668, 26230, 28670, 29585, 40420, 41710, 45590, 52460, 57340, 59170, 83420, 91180, 118340, 123281, 196037, 246562, 254431, 278099, 392074, 493124, 508862, 556198, 616405, 784148, 980185, 1017724, 1112396, 1232810, 1272155, 1390495, 1960370, 2465620, 2544310, 2780990, 3920740, 5088620, 5561980, 11958257, 23916514, 47833028, 59791285, 119582570, 239165140]

約数ペア:

[(1, 239165140), (2, 119582570), (4, 59791285), (5, 47833028), (10, 23916514), (20, 11958257), (43, 5561980), (47, 5088620), (61, 3920740), (86, 2780990), (94, 2544310), (97, 2465620), (122, 1960370), (172, 1390495), (188, 1272155), (194, 1232810), (215, 1112396), (235, 1017724), (244, 980185), (305, 784148), (388, 616405), (430, 556198), (470, 508862), (485, 493124), (610, 392074), (860, 278099), (940, 254431), (970, 246562), (1220, 196037), (1940, 123281), (2021, 118340), (2623, 91180), (2867, 83420), (4042, 59170), (4171, 57340), (4559, 52460), (5246, 45590), (5734, 41710), (5917, 40420), (8084, 29585), (8342, 28670), (9118, 26230), (10105, 23668), (10492, 22795), (11468, 20855), (11834, 20210), (13115, 18236), (14335, 16684)]