2018702980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{55673}}^1$

素因数の和:55733

約数の個数: 72

約数和(自身を含む): 5064775128

約数和(自身を除く): 3046072148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2590, 3626, 5180, 7252, 9065, 18130, 36260, 55673, 111346, 222692, 278365, 389711, 556730, 779422, 1113460, 1558844, 1948555, 2059901, 2727977, 3897110, 4119802, 5455954, 7794220, 8239604, 10299505, 10911908, 13639885, 14419307, 20599010, 27279770, 28838614, 41198020, 54559540, 57677228, 72096535, 100935149, 144193070, 201870298, 288386140, 403740596, 504675745, 1009351490, 2018702980]

約数ペア:

[(1, 2018702980), (2, 1009351490), (4, 504675745), (5, 403740596), (7, 288386140), (10, 201870298), (14, 144193070), (20, 100935149), (28, 72096535), (35, 57677228), (37, 54559540), (49, 41198020), (70, 28838614), (74, 27279770), (98, 20599010), (140, 14419307), (148, 13639885), (185, 10911908), (196, 10299505), (245, 8239604), (259, 7794220), (370, 5455954), (490, 4119802), (518, 3897110), (740, 2727977), (980, 2059901), (1036, 1948555), (1295, 1558844), (1813, 1113460), (2590, 779422), (3626, 556730), (5180, 389711), (7252, 278365), (9065, 222692), (18130, 111346), (36260, 55673)]