19242880

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 46597680

約数和(自身を除く): 27354800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 281, 320, 428, 535, 562, 640, 856, 1070, 1124, 1405, 1712, 2140, 2248, 2810, 3424, 4280, 4496, 5620, 6848, 8560, 8992, 11240, 13696, 17120, 17984, 22480, 30067, 34240, 35968, 44960, 60134, 68480, 89920, 120268, 150335, 179840, 240536, 300670, 481072, 601340, 962144, 1202680, 1924288, 2405360, 3848576, 4810720, 9621440, 19242880]

約数ペア:

[(1, 19242880), (2, 9621440), (4, 4810720), (5, 3848576), (8, 2405360), (10, 1924288), (16, 1202680), (20, 962144), (32, 601340), (40, 481072), (64, 300670), (80, 240536), (107, 179840), (128, 150335), (160, 120268), (214, 89920), (281, 68480), (320, 60134), (428, 44960), (535, 35968), (562, 34240), (640, 30067), (856, 22480), (1070, 17984), (1124, 17120), (1405, 13696), (1712, 11240), (2140, 8992), (2248, 8560), (2810, 6848), (3424, 5620), (4280, 4496)]