18907920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{26261}}^1$

素因数の和:26280

約数の個数: 60

約数和(自身を含む): 63501516

約数和(自身を除く): 44593596

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 26261, 52522, 78783, 105044, 131305, 157566, 210088, 236349, 262610, 315132, 393915, 420176, 472698, 525220, 630264, 787830, 945396, 1050440, 1181745, 1260528, 1575660, 1890792, 2100880, 2363490, 3151320, 3781584, 4726980, 6302640, 9453960, 18907920]

約数ペア:

[(1, 18907920), (2, 9453960), (3, 6302640), (4, 4726980), (5, 3781584), (6, 3151320), (8, 2363490), (9, 2100880), (10, 1890792), (12, 1575660), (15, 1260528), (16, 1181745), (18, 1050440), (20, 945396), (24, 787830), (30, 630264), (36, 525220), (40, 472698), (45, 420176), (48, 393915), (60, 315132), (72, 262610), (80, 236349), (90, 210088), (120, 157566), (144, 131305), (180, 105044), (240, 78783), (360, 52522), (720, 26261)]