128857740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17749}}^1$

素因数の和:17783

約数の個数: 72

約数和(自身を含む): 396606000

約数和(自身を除く): 267748260

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 7260, 17749, 35498, 53247, 70996, 88745, 106494, 177490, 195239, 212988, 266235, 354980, 390478, 532470, 585717, 780956, 976195, 1064940, 1171434, 1952390, 2147629, 2342868, 2928585, 3904780, 4295258, 5857170, 6442887, 8590516, 10738145, 11714340, 12885774, 21476290, 25771548, 32214435, 42952580, 64428870, 128857740]

約数ペア:

[(1, 128857740), (2, 64428870), (3, 42952580), (4, 32214435), (5, 25771548), (6, 21476290), (10, 12885774), (11, 11714340), (12, 10738145), (15, 8590516), (20, 6442887), (22, 5857170), (30, 4295258), (33, 3904780), (44, 2928585), (55, 2342868), (60, 2147629), (66, 1952390), (110, 1171434), (121, 1064940), (132, 976195), (165, 780956), (220, 585717), (242, 532470), (330, 390478), (363, 354980), (484, 266235), (605, 212988), (660, 195239), (726, 177490), (1210, 106494), (1452, 88745), (1815, 70996), (2420, 53247), (3630, 35498), (7260, 17749)]