16162780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 35481600

約数和(自身を除く): 19318820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 199, 262, 310, 398, 524, 620, 655, 796, 995, 1310, 1990, 2620, 3980, 4061, 6169, 8122, 12338, 16244, 20305, 24676, 26069, 30845, 40610, 52138, 61690, 81220, 104276, 123380, 130345, 260690, 521380, 808139, 1616278, 3232556, 4040695, 8081390, 16162780]

約数ペア:

[(1, 16162780), (2, 8081390), (4, 4040695), (5, 3232556), (10, 1616278), (20, 808139), (31, 521380), (62, 260690), (124, 130345), (131, 123380), (155, 104276), (199, 81220), (262, 61690), (310, 52138), (398, 40610), (524, 30845), (620, 26069), (655, 24676), (796, 20305), (995, 16244), (1310, 12338), (1990, 8122), (2620, 6169), (3980, 4061)]