61720845

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 110592000

約数和(自身を除く): 48871155

約数列:

[1, 3, 5, 15, 23, 29, 31, 69, 87, 93, 115, 145, 155, 199, 345, 435, 465, 597, 667, 713, 899, 995, 2001, 2139, 2697, 2985, 3335, 3565, 4495, 4577, 5771, 6169, 10005, 10695, 13485, 13731, 17313, 18507, 20677, 22885, 28855, 30845, 62031, 68655, 86565, 92535, 103385, 132733, 141887, 178901, 310155, 398199, 425661, 536703, 663665, 709435, 894505, 1990995, 2128305, 2683515, 4114723, 12344169, 20573615, 61720845]

約数ペア:

[(1, 61720845), (3, 20573615), (5, 12344169), (15, 4114723), (23, 2683515), (29, 2128305), (31, 1990995), (69, 894505), (87, 709435), (93, 663665), (115, 536703), (145, 425661), (155, 398199), (199, 310155), (345, 178901), (435, 141887), (465, 132733), (597, 103385), (667, 92535), (713, 86565), (899, 68655), (995, 62031), (2001, 30845), (2139, 28855), (2697, 22885), (2985, 20677), (3335, 18507), (3565, 17313), (4495, 13731), (4577, 13485), (5771, 10695), (6169, 10005)]