20136423280

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{794023}}^1$

素因数の和:794353

約数の個数: 40

約数和(自身を含む): 46964931552

約数和(自身を除く): 26828508272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 12680, 25360, 794023, 1588046, 3176092, 3970115, 6352184, 7940230, 12704368, 15880460, 31760920, 63521840, 251705291, 503410582, 1006821164, 1258526455, 2013642328, 2517052910, 4027284656, 5034105820, 10068211640, 20136423280]

約数ペア:

[(1, 20136423280), (2, 10068211640), (4, 5034105820), (5, 4027284656), (8, 2517052910), (10, 2013642328), (16, 1258526455), (20, 1006821164), (40, 503410582), (80, 251705291), (317, 63521840), (634, 31760920), (1268, 15880460), (1585, 12704368), (2536, 7940230), (3170, 6352184), (5072, 3970115), (6340, 3176092), (12680, 1588046), (25360, 794023)]