20199995480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{268189}}^1$

素因数の和:268476

約数の個数: 64

約数和(自身を含む): 52136136000

約数和(自身を除く): 31936140520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 269, 280, 538, 1076, 1345, 1883, 2152, 2690, 3766, 5380, 7532, 9415, 10760, 15064, 18830, 37660, 75320, 268189, 536378, 1072756, 1340945, 1877323, 2145512, 2681890, 3754646, 5363780, 7509292, 9386615, 10727560, 15018584, 18773230, 37546460, 72142841, 75092920, 144285682, 288571364, 360714205, 504999887, 577142728, 721428410, 1009999774, 1442856820, 2019999548, 2524999435, 2885713640, 4039999096, 5049998870, 10099997740, 20199995480]

約数ペア:

[(1, 20199995480), (2, 10099997740), (4, 5049998870), (5, 4039999096), (7, 2885713640), (8, 2524999435), (10, 2019999548), (14, 1442856820), (20, 1009999774), (28, 721428410), (35, 577142728), (40, 504999887), (56, 360714205), (70, 288571364), (140, 144285682), (269, 75092920), (280, 72142841), (538, 37546460), (1076, 18773230), (1345, 15018584), (1883, 10727560), (2152, 9386615), (2690, 7509292), (3766, 5363780), (5380, 3754646), (7532, 2681890), (9415, 2145512), (10760, 1877323), (15064, 1340945), (18830, 1072756), (37660, 536378), (75320, 268189)]