28402820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 62662656

約数和(自身を除く): 34259836

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 751, 1220, 1502, 1891, 3004, 3755, 3782, 7510, 7564, 9455, 15020, 18910, 23281, 37820, 45811, 46562, 91622, 93124, 116405, 183244, 229055, 232810, 458110, 465620, 916220, 1420141, 2840282, 5680564, 7100705, 14201410, 28402820]

約数ペア:

[(1, 28402820), (2, 14201410), (4, 7100705), (5, 5680564), (10, 2840282), (20, 1420141), (31, 916220), (61, 465620), (62, 458110), (122, 232810), (124, 229055), (155, 183244), (244, 116405), (305, 93124), (310, 91622), (610, 46562), (620, 45811), (751, 37820), (1220, 23281), (1502, 18910), (1891, 15020), (3004, 9455), (3755, 7564), (3782, 7510)]