20148740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3119}}^1$

素因数の和:3164

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 27025660

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3119, 3230, 6238, 6460, 12476, 15595, 31190, 53023, 59261, 62380, 106046, 118522, 212092, 237044, 265115, 296305, 530230, 592610, 1007437, 1060460, 1185220, 2014874, 4029748, 5037185, 10074370, 20148740]

約数ペア:

[(1, 20148740), (2, 10074370), (4, 5037185), (5, 4029748), (10, 2014874), (17, 1185220), (19, 1060460), (20, 1007437), (34, 592610), (38, 530230), (68, 296305), (76, 265115), (85, 237044), (95, 212092), (170, 118522), (190, 106046), (323, 62380), (340, 59261), (380, 53023), (646, 31190), (1292, 15595), (1615, 12476), (3119, 6460), (3230, 6238)]