289301840

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{9109}}^1$

素因数の和:9519

約数の個数: 40

約数和(自身を含む): 674395080

約数和(自身を除く): 385093240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 6352, 7940, 9109, 15880, 18218, 31760, 36436, 45545, 72872, 91090, 145744, 182180, 364360, 728720, 3616273, 7232546, 14465092, 18081365, 28930184, 36162730, 57860368, 72325460, 144650920, 289301840]

約数ペア:

[(1, 289301840), (2, 144650920), (4, 72325460), (5, 57860368), (8, 36162730), (10, 28930184), (16, 18081365), (20, 14465092), (40, 7232546), (80, 3616273), (397, 728720), (794, 364360), (1588, 182180), (1985, 145744), (3176, 91090), (3970, 72872), (6352, 45545), (7940, 36436), (9109, 31760), (15880, 18218)]