80663960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2543}}^1$

素因数の和:2628

約数の個数: 64

約数和(自身を含む): 198737280

約数和(自身を除く): 118073320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 2543, 3172, 3965, 5086, 6344, 7930, 10172, 12715, 15860, 20344, 25430, 31720, 33059, 50860, 66118, 101720, 132236, 155123, 165295, 264472, 310246, 330590, 620492, 661180, 775615, 1240984, 1322360, 1551230, 2016599, 3102460, 4033198, 6204920, 8066396, 10082995, 16132792, 20165990, 40331980, 80663960]

約数ペア:

[(1, 80663960), (2, 40331980), (4, 20165990), (5, 16132792), (8, 10082995), (10, 8066396), (13, 6204920), (20, 4033198), (26, 3102460), (40, 2016599), (52, 1551230), (61, 1322360), (65, 1240984), (104, 775615), (122, 661180), (130, 620492), (244, 330590), (260, 310246), (305, 264472), (488, 165295), (520, 155123), (610, 132236), (793, 101720), (1220, 66118), (1586, 50860), (2440, 33059), (2543, 31720), (3172, 25430), (3965, 20344), (5086, 15860), (6344, 12715), (7930, 10172)]