20181281724

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{46181}}^1$

素因数の和:46451

約数の個数: 72

約数和(自身を含む): 52111768800

約数和(自身を除く): 31930487076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 199, 244, 366, 398, 549, 597, 732, 796, 1098, 1194, 1791, 2196, 2388, 3582, 7164, 12139, 24278, 36417, 46181, 48556, 72834, 92362, 109251, 138543, 145668, 184724, 218502, 277086, 415629, 437004, 554172, 831258, 1662516, 2817041, 5634082, 8451123, 9190019, 11268164, 16902246, 18380038, 25353369, 27570057, 33804492, 36760076, 50706738, 55140114, 82710171, 101413476, 110280228, 165420342, 330840684, 560591159, 1121182318, 1681773477, 2242364636, 3363546954, 5045320431, 6727093908, 10090640862, 20181281724]

約数ペア:

[(1, 20181281724), (2, 10090640862), (3, 6727093908), (4, 5045320431), (6, 3363546954), (9, 2242364636), (12, 1681773477), (18, 1121182318), (36, 560591159), (61, 330840684), (122, 165420342), (183, 110280228), (199, 101413476), (244, 82710171), (366, 55140114), (398, 50706738), (549, 36760076), (597, 33804492), (732, 27570057), (796, 25353369), (1098, 18380038), (1194, 16902246), (1791, 11268164), (2196, 9190019), (2388, 8451123), (3582, 5634082), (7164, 2817041), (12139, 1662516), (24278, 831258), (36417, 554172), (46181, 437004), (48556, 415629), (72834, 277086), (92362, 218502), (109251, 184724), (138543, 145668)]