2100086990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{128603}}^1$

素因数の和:128704

約数の個数: 32

約数和(自身を含む): 4000098816

約数和(自身を除く): 1900011826

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1633, 3266, 8165, 16330, 128603, 257206, 643015, 1286030, 2957869, 5915738, 9130813, 14789345, 18261626, 29578690, 45654065, 91308130, 210008699, 420017398, 1050043495, 2100086990]

約数ペア:

[(1, 2100086990), (2, 1050043495), (5, 420017398), (10, 210008699), (23, 91308130), (46, 45654065), (71, 29578690), (115, 18261626), (142, 14789345), (230, 9130813), (355, 5915738), (710, 2957869), (1633, 1286030), (3266, 643015), (8165, 257206), (16330, 128603)]