20178864

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8243}}^1$

素因数の和:8274

約数の個数: 60

約数和(自身を含む): 59801976

約数和(自身を除く): 39623112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8243, 16486, 24729, 32972, 49458, 65944, 74187, 98916, 131888, 140131, 148374, 197832, 280262, 296748, 395664, 420393, 560524, 593496, 840786, 1121048, 1186992, 1261179, 1681572, 2242096, 2522358, 3363144, 5044716, 6726288, 10089432, 20178864]

約数ペア:

[(1, 20178864), (2, 10089432), (3, 6726288), (4, 5044716), (6, 3363144), (8, 2522358), (9, 2242096), (12, 1681572), (16, 1261179), (17, 1186992), (18, 1121048), (24, 840786), (34, 593496), (36, 560524), (48, 420393), (51, 395664), (68, 296748), (72, 280262), (102, 197832), (136, 148374), (144, 140131), (153, 131888), (204, 98916), (272, 74187), (306, 65944), (408, 49458), (612, 32972), (816, 24729), (1224, 16486), (2448, 8243)]