77880440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16091}}^1$

素因数の和:16124

約数の個数: 48

約数和(自身を含む): 192621240

約数和(自身を除く): 114740800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 16091, 32182, 64364, 80455, 128728, 160910, 177001, 321820, 354002, 643640, 708004, 885005, 1416008, 1770010, 1947011, 3540020, 3894022, 7080040, 7788044, 9735055, 15576088, 19470110, 38940220, 77880440]

約数ペア:

[(1, 77880440), (2, 38940220), (4, 19470110), (5, 15576088), (8, 9735055), (10, 7788044), (11, 7080040), (20, 3894022), (22, 3540020), (40, 1947011), (44, 1770010), (55, 1416008), (88, 885005), (110, 708004), (121, 643640), (220, 354002), (242, 321820), (440, 177001), (484, 160910), (605, 128728), (968, 80455), (1210, 64364), (2420, 32182), (4840, 16091)]