2019995240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{27793}}^1$

素因数の和:27906

約数の個数: 64

約数和(自身を含む): 4802803200

約数和(自身を除く): 2782807960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 79, 92, 115, 158, 184, 230, 316, 395, 460, 632, 790, 920, 1580, 1817, 3160, 3634, 7268, 9085, 14536, 18170, 27793, 36340, 55586, 72680, 111172, 138965, 222344, 277930, 555860, 639239, 1111720, 1278478, 2195647, 2556956, 3196195, 4391294, 5113912, 6392390, 8782588, 10978235, 12784780, 17565176, 21956470, 25569560, 43912940, 50499881, 87825880, 100999762, 201999524, 252499405, 403999048, 504998810, 1009997620, 2019995240]

約数ペア:

[(1, 2019995240), (2, 1009997620), (4, 504998810), (5, 403999048), (8, 252499405), (10, 201999524), (20, 100999762), (23, 87825880), (40, 50499881), (46, 43912940), (79, 25569560), (92, 21956470), (115, 17565176), (158, 12784780), (184, 10978235), (230, 8782588), (316, 6392390), (395, 5113912), (460, 4391294), (632, 3196195), (790, 2556956), (920, 2195647), (1580, 1278478), (1817, 1111720), (3160, 639239), (3634, 555860), (7268, 277930), (9085, 222344), (14536, 138965), (18170, 111172), (27793, 72680), (36340, 55586)]