28926780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5417}}^1$

素因数の和:5518

約数の個数: 48

約数和(自身を含む): 81920160

約数和(自身を除く): 52993380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 5340, 5417, 10834, 16251, 21668, 27085, 32502, 54170, 65004, 81255, 108340, 162510, 325020, 482113, 964226, 1446339, 1928452, 2410565, 2892678, 4821130, 5785356, 7231695, 9642260, 14463390, 28926780]

約数ペア:

[(1, 28926780), (2, 14463390), (3, 9642260), (4, 7231695), (5, 5785356), (6, 4821130), (10, 2892678), (12, 2410565), (15, 1928452), (20, 1446339), (30, 964226), (60, 482113), (89, 325020), (178, 162510), (267, 108340), (356, 81255), (445, 65004), (534, 54170), (890, 32502), (1068, 27085), (1335, 21668), (1780, 16251), (2670, 10834), (5340, 5417)]