180390320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{571}}^1$

素因数の和:954

約数の個数: 80

約数和(自身を含む): 459613440

約数和(自身を除く): 279223120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 359, 440, 571, 718, 880, 1142, 1436, 1795, 2284, 2855, 2872, 3590, 3949, 4568, 5710, 5744, 6281, 7180, 7898, 9136, 11420, 12562, 14360, 15796, 19745, 22840, 25124, 28720, 31405, 31592, 39490, 45680, 50248, 62810, 63184, 78980, 100496, 125620, 157960, 204989, 251240, 315920, 409978, 502480, 819956, 1024945, 1639912, 2049890, 2254879, 3279824, 4099780, 4509758, 8199560, 9019516, 11274395, 16399120, 18039032, 22548790, 36078064, 45097580, 90195160, 180390320]

約数ペア:

[(1, 180390320), (2, 90195160), (4, 45097580), (5, 36078064), (8, 22548790), (10, 18039032), (11, 16399120), (16, 11274395), (20, 9019516), (22, 8199560), (40, 4509758), (44, 4099780), (55, 3279824), (80, 2254879), (88, 2049890), (110, 1639912), (176, 1024945), (220, 819956), (359, 502480), (440, 409978), (571, 315920), (718, 251240), (880, 204989), (1142, 157960), (1436, 125620), (1795, 100496), (2284, 78980), (2855, 63184), (2872, 62810), (3590, 50248), (3949, 45680), (4568, 39490), (5710, 31592), (5744, 31405), (6281, 28720), (7180, 25124), (7898, 22840), (9136, 19745), (11420, 15796), (12562, 14360)]