1288172990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{2663}}^1$

素因数の和:2805

約数の個数: 48

約数和(自身を含む): 2539633824

約数和(自身を除く): 1251460834

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2663, 3721, 3965, 5326, 7442, 7930, 13315, 18605, 26630, 34619, 37210, 48373, 69238, 96746, 162443, 173095, 241865, 324886, 346190, 483730, 812215, 1624430, 2111759, 4223518, 9909023, 10558795, 19818046, 21117590, 49545115, 99090230, 128817299, 257634598, 644086495, 1288172990]

約数ペア:

[(1, 1288172990), (2, 644086495), (5, 257634598), (10, 128817299), (13, 99090230), (26, 49545115), (61, 21117590), (65, 19818046), (122, 10558795), (130, 9909023), (305, 4223518), (610, 2111759), (793, 1624430), (1586, 812215), (2663, 483730), (3721, 346190), (3965, 324886), (5326, 241865), (7442, 173095), (7930, 162443), (13315, 96746), (18605, 69238), (26630, 48373), (34619, 37210)]