121360720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:2000

約数の個数: 80

約数和(自身を含む): 309011472

約数和(自身を除く): 187650752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 1913, 2440, 3172, 3826, 3965, 4880, 6344, 7652, 7930, 9565, 12688, 15304, 15860, 19130, 24869, 30608, 31720, 38260, 49738, 63440, 76520, 99476, 116693, 124345, 153040, 198952, 233386, 248690, 397904, 466772, 497380, 583465, 933544, 994760, 1166930, 1517009, 1867088, 1989520, 2333860, 3034018, 4667720, 6068036, 7585045, 9335440, 12136072, 15170090, 24272144, 30340180, 60680360, 121360720]

約数ペア:

[(1, 121360720), (2, 60680360), (4, 30340180), (5, 24272144), (8, 15170090), (10, 12136072), (13, 9335440), (16, 7585045), (20, 6068036), (26, 4667720), (40, 3034018), (52, 2333860), (61, 1989520), (65, 1867088), (80, 1517009), (104, 1166930), (122, 994760), (130, 933544), (208, 583465), (244, 497380), (260, 466772), (305, 397904), (488, 248690), (520, 233386), (610, 198952), (793, 153040), (976, 124345), (1040, 116693), (1220, 99476), (1586, 76520), (1913, 63440), (2440, 49738), (3172, 38260), (3826, 31720), (3965, 30608), (4880, 24869), (6344, 19130), (7652, 15860), (7930, 15304), (9565, 12688)]