19962240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:340

約数の個数: 128

約数和(自身を含む): 65581920

約数和(自身を除く): 45619680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 281, 296, 320, 370, 384, 444, 480, 555, 562, 592, 640, 740, 843, 888, 960, 1110, 1124, 1184, 1405, 1480, 1686, 1776, 1920, 2220, 2248, 2368, 2810, 2960, 3372, 3552, 4215, 4440, 4496, 4736, 5620, 5920, 6744, 7104, 8430, 8880, 8992, 10397, 11240, 11840, 13488, 14208, 16860, 17760, 17984, 20794, 22480, 23680, 26976, 31191, 33720, 35520, 35968, 41588, 44960, 51985, 53952, 62382, 67440, 71040, 83176, 89920, 103970, 107904, 124764, 134880, 155955, 166352, 179840, 207940, 249528, 269760, 311910, 332704, 415880, 499056, 539520, 623820, 665408, 831760, 998112, 1247640, 1330816, 1663520, 1996224, 2495280, 3327040, 3992448, 4990560, 6654080, 9981120, 19962240]

約数ペア:

[(1, 19962240), (2, 9981120), (3, 6654080), (4, 4990560), (5, 3992448), (6, 3327040), (8, 2495280), (10, 1996224), (12, 1663520), (15, 1330816), (16, 1247640), (20, 998112), (24, 831760), (30, 665408), (32, 623820), (37, 539520), (40, 499056), (48, 415880), (60, 332704), (64, 311910), (74, 269760), (80, 249528), (96, 207940), (111, 179840), (120, 166352), (128, 155955), (148, 134880), (160, 124764), (185, 107904), (192, 103970), (222, 89920), (240, 83176), (281, 71040), (296, 67440), (320, 62382), (370, 53952), (384, 51985), (444, 44960), (480, 41588), (555, 35968), (562, 35520), (592, 33720), (640, 31191), (740, 26976), (843, 23680), (888, 22480), (960, 20794), (1110, 17984), (1124, 17760), (1184, 16860), (1405, 14208), (1480, 13488), (1686, 11840), (1776, 11240), (1920, 10397), (2220, 8992), (2248, 8880), (2368, 8430), (2810, 7104), (2960, 6744), (3372, 5920), (3552, 5620), (4215, 4736), (4440, 4496)]