20199256280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1472249}}^1$

素因数の和:1472281

約数の個数: 64

約数和(自身を含む): 53001000000

約数和(自身を除く): 32801743720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 1472249, 2944498, 5888996, 7361245, 10305743, 11777992, 14722490, 20611486, 29444980, 41222972, 51528715, 58889960, 72140201, 82445944, 103057430, 144280402, 206114860, 288560804, 360701005, 412229720, 504981407, 577121608, 721402010, 1009962814, 1442804020, 2019925628, 2524907035, 2885608040, 4039851256, 5049814070, 10099628140, 20199256280]

約数ペア:

[(1, 20199256280), (2, 10099628140), (4, 5049814070), (5, 4039851256), (7, 2885608040), (8, 2524907035), (10, 2019925628), (14, 1442804020), (20, 1009962814), (28, 721402010), (35, 577121608), (40, 504981407), (49, 412229720), (56, 360701005), (70, 288560804), (98, 206114860), (140, 144280402), (196, 103057430), (245, 82445944), (280, 72140201), (343, 58889960), (392, 51528715), (490, 41222972), (686, 29444980), (980, 20611486), (1372, 14722490), (1715, 11777992), (1960, 10305743), (2744, 7361245), (3430, 5888996), (6860, 2944498), (13720, 1472249)]