20955696

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 58398048

約数和(自身を除く): 37442352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 61, 68, 102, 122, 136, 183, 204, 244, 272, 366, 408, 421, 488, 732, 816, 842, 976, 1037, 1263, 1464, 1684, 2074, 2526, 2928, 3111, 3368, 4148, 5052, 6222, 6736, 7157, 8296, 10104, 12444, 14314, 16592, 20208, 21471, 24888, 25681, 28628, 42942, 49776, 51362, 57256, 77043, 85884, 102724, 114512, 154086, 171768, 205448, 308172, 343536, 410896, 436577, 616344, 873154, 1232688, 1309731, 1746308, 2619462, 3492616, 5238924, 6985232, 10477848, 20955696]

約数ペア:

[(1, 20955696), (2, 10477848), (3, 6985232), (4, 5238924), (6, 3492616), (8, 2619462), (12, 1746308), (16, 1309731), (17, 1232688), (24, 873154), (34, 616344), (48, 436577), (51, 410896), (61, 343536), (68, 308172), (102, 205448), (122, 171768), (136, 154086), (183, 114512), (204, 102724), (244, 85884), (272, 77043), (366, 57256), (408, 51362), (421, 49776), (488, 42942), (732, 28628), (816, 25681), (842, 24888), (976, 21471), (1037, 20208), (1263, 16592), (1464, 14314), (1684, 12444), (2074, 10104), (2526, 8296), (2928, 7157), (3111, 6736), (3368, 6222), (4148, 5052)]