2779160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 6829920

約数和(自身を除く): 4050760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 67, 68, 85, 122, 134, 136, 170, 244, 268, 305, 335, 340, 488, 536, 610, 670, 680, 1037, 1139, 1220, 1340, 2074, 2278, 2440, 2680, 4087, 4148, 4556, 5185, 5695, 8174, 8296, 9112, 10370, 11390, 16348, 20435, 20740, 22780, 32696, 40870, 41480, 45560, 69479, 81740, 138958, 163480, 277916, 347395, 555832, 694790, 1389580, 2779160]

約数ペア:

[(1, 2779160), (2, 1389580), (4, 694790), (5, 555832), (8, 347395), (10, 277916), (17, 163480), (20, 138958), (34, 81740), (40, 69479), (61, 45560), (67, 41480), (68, 40870), (85, 32696), (122, 22780), (134, 20740), (136, 20435), (170, 16348), (244, 11390), (268, 10370), (305, 9112), (335, 8296), (340, 8174), (488, 5695), (536, 5185), (610, 4556), (670, 4148), (680, 4087), (1037, 2680), (1139, 2440), (1220, 2278), (1340, 2074)]