20181284715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{63773}}^1$

素因数の和:63888

約数の個数: 48

約数和(自身を含む): 34771625568

約数和(自身を除く): 14590340853

約数列:

[1, 3, 5, 15, 17, 51, 73, 85, 219, 255, 289, 365, 867, 1095, 1241, 1445, 3723, 4335, 6205, 18615, 21097, 63291, 63773, 105485, 191319, 316455, 318865, 956595, 1084141, 3252423, 4655429, 5420705, 13966287, 16262115, 18430397, 23277145, 55291191, 69831435, 79142293, 92151985, 237426879, 276455955, 395711465, 1187134395, 1345418981, 4036256943, 6727094905, 20181284715]

約数ペア:

[(1, 20181284715), (3, 6727094905), (5, 4036256943), (15, 1345418981), (17, 1187134395), (51, 395711465), (73, 276455955), (85, 237426879), (219, 92151985), (255, 79142293), (289, 69831435), (365, 55291191), (867, 23277145), (1095, 18430397), (1241, 16262115), (1445, 13966287), (3723, 5420705), (4335, 4655429), (6205, 3252423), (18615, 1084141), (21097, 956595), (63291, 318865), (63773, 316455), (105485, 191319)]