20808675828

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{679223}}^1$

素因数の和:679293

約数の個数: 72

約数和(自身を含む): 56370158208

約数和(自身を除く): 35561482380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 37, 46, 69, 74, 92, 111, 138, 148, 207, 222, 276, 333, 414, 444, 666, 828, 851, 1332, 1702, 2553, 3404, 5106, 7659, 10212, 15318, 30636, 679223, 1358446, 2037669, 2716892, 4075338, 6113007, 8150676, 12226014, 15622129, 24452028, 25131251, 31244258, 46866387, 50262502, 62488516, 75393753, 93732774, 100525004, 140599161, 150787506, 187465548, 226181259, 281198322, 301575012, 452362518, 562396644, 578018773, 904725036, 1156037546, 1734056319, 2312075092, 3468112638, 5202168957, 6936225276, 10404337914, 20808675828]

約数ペア:

[(1, 20808675828), (2, 10404337914), (3, 6936225276), (4, 5202168957), (6, 3468112638), (9, 2312075092), (12, 1734056319), (18, 1156037546), (23, 904725036), (36, 578018773), (37, 562396644), (46, 452362518), (69, 301575012), (74, 281198322), (92, 226181259), (111, 187465548), (138, 150787506), (148, 140599161), (207, 100525004), (222, 93732774), (276, 75393753), (333, 62488516), (414, 50262502), (444, 46866387), (666, 31244258), (828, 25131251), (851, 24452028), (1332, 15622129), (1702, 12226014), (2553, 8150676), (3404, 6113007), (5106, 4075338), (7659, 2716892), (10212, 2037669), (15318, 1358446), (30636, 679223)]