28854220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 62683488

約数和(自身を除く): 33829268

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 335, 353, 610, 670, 706, 1220, 1340, 1412, 1765, 3530, 4087, 7060, 8174, 16348, 20435, 21533, 23651, 40870, 43066, 47302, 81740, 86132, 94604, 107665, 118255, 215330, 236510, 430660, 473020, 1442711, 2885422, 5770844, 7213555, 14427110, 28854220]

約数ペア:

[(1, 28854220), (2, 14427110), (4, 7213555), (5, 5770844), (10, 2885422), (20, 1442711), (61, 473020), (67, 430660), (122, 236510), (134, 215330), (244, 118255), (268, 107665), (305, 94604), (335, 86132), (353, 81740), (610, 47302), (670, 43066), (706, 40870), (1220, 23651), (1340, 21533), (1412, 20435), (1765, 16348), (3530, 8174), (4087, 7060)]