20188112

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 29308720

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 34, 46, 56, 68, 92, 112, 119, 136, 161, 184, 238, 272, 322, 368, 391, 461, 476, 644, 782, 922, 952, 1288, 1564, 1844, 1904, 2576, 2737, 3128, 3227, 3688, 5474, 6256, 6454, 7376, 7837, 10603, 10948, 12908, 15674, 21206, 21896, 25816, 31348, 42412, 43792, 51632, 54859, 62696, 74221, 84824, 109718, 125392, 148442, 169648, 180251, 219436, 296884, 360502, 438872, 593768, 721004, 877744, 1187536, 1261757, 1442008, 2523514, 2884016, 5047028, 10094056, 20188112]

約数ペア:

[(1, 20188112), (2, 10094056), (4, 5047028), (7, 2884016), (8, 2523514), (14, 1442008), (16, 1261757), (17, 1187536), (23, 877744), (28, 721004), (34, 593768), (46, 438872), (56, 360502), (68, 296884), (92, 219436), (112, 180251), (119, 169648), (136, 148442), (161, 125392), (184, 109718), (238, 84824), (272, 74221), (322, 62696), (368, 54859), (391, 51632), (461, 43792), (476, 42412), (644, 31348), (782, 25816), (922, 21896), (952, 21206), (1288, 15674), (1564, 12908), (1844, 10948), (1904, 10603), (2576, 7837), (2737, 7376), (3128, 6454), (3227, 6256), (3688, 5474)]