18611475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 32736000

約数和(自身を除く): 14124525

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 145, 199, 215, 435, 597, 645, 725, 995, 1075, 1247, 2175, 2985, 3225, 3741, 4975, 5771, 6235, 8557, 14925, 17313, 18705, 25671, 28855, 31175, 42785, 86565, 93525, 128355, 144275, 213925, 248153, 432825, 641775, 744459, 1240765, 3722295, 6203825, 18611475]

約数ペア:

[(1, 18611475), (3, 6203825), (5, 3722295), (15, 1240765), (25, 744459), (29, 641775), (43, 432825), (75, 248153), (87, 213925), (129, 144275), (145, 128355), (199, 93525), (215, 86565), (435, 42785), (597, 31175), (645, 28855), (725, 25671), (995, 18705), (1075, 17313), (1247, 14925), (2175, 8557), (2985, 6235), (3225, 5771), (3741, 4975)]