30178540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1373}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 72942912

約数和(自身を除く): 42764372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1373, 1570, 2198, 2746, 3140, 4396, 5492, 5495, 6865, 9611, 10990, 13730, 19222, 21980, 27460, 38444, 48055, 96110, 192220, 215561, 431122, 862244, 1077805, 1508927, 2155610, 3017854, 4311220, 6035708, 7544635, 15089270, 30178540]

約数ペア:

[(1, 30178540), (2, 15089270), (4, 7544635), (5, 6035708), (7, 4311220), (10, 3017854), (14, 2155610), (20, 1508927), (28, 1077805), (35, 862244), (70, 431122), (140, 215561), (157, 192220), (314, 96110), (628, 48055), (785, 38444), (1099, 27460), (1373, 21980), (1570, 19222), (2198, 13730), (2746, 10990), (3140, 9611), (4396, 6865), (5492, 5495)]