177972990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{7481}}^1$

素因数の和:7565

約数の個数: 64

約数和(自身を含む): 467595072

約数和(自身を除く): 289622082

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 793, 915, 1586, 1830, 2379, 3965, 4758, 7481, 7930, 11895, 14962, 22443, 23790, 37405, 44886, 74810, 97253, 112215, 194506, 224430, 291759, 456341, 486265, 583518, 912682, 972530, 1369023, 1458795, 2281705, 2738046, 2917590, 4563410, 5932433, 6845115, 11864866, 13690230, 17797299, 29662165, 35594598, 59324330, 88986495, 177972990]

約数ペア:

[(1, 177972990), (2, 88986495), (3, 59324330), (5, 35594598), (6, 29662165), (10, 17797299), (13, 13690230), (15, 11864866), (26, 6845115), (30, 5932433), (39, 4563410), (61, 2917590), (65, 2738046), (78, 2281705), (122, 1458795), (130, 1369023), (183, 972530), (195, 912682), (305, 583518), (366, 486265), (390, 456341), (610, 291759), (793, 224430), (915, 194506), (1586, 112215), (1830, 97253), (2379, 74810), (3965, 44886), (4758, 37405), (7481, 23790), (7930, 22443), (11895, 14962)]