19236880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 49215600

約数和(自身を除く): 29978720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 349, 424, 520, 530, 689, 698, 848, 1040, 1060, 1378, 1396, 1745, 2120, 2756, 2792, 3445, 3490, 4240, 4537, 5512, 5584, 6890, 6980, 9074, 11024, 13780, 13960, 18148, 18497, 22685, 27560, 27920, 36296, 36994, 45370, 55120, 72592, 73988, 90740, 92485, 147976, 181480, 184970, 240461, 295952, 362960, 369940, 480922, 739880, 961844, 1202305, 1479760, 1923688, 2404610, 3847376, 4809220, 9618440, 19236880]

約数ペア:

[(1, 19236880), (2, 9618440), (4, 4809220), (5, 3847376), (8, 2404610), (10, 1923688), (13, 1479760), (16, 1202305), (20, 961844), (26, 739880), (40, 480922), (52, 369940), (53, 362960), (65, 295952), (80, 240461), (104, 184970), (106, 181480), (130, 147976), (208, 92485), (212, 90740), (260, 73988), (265, 72592), (349, 55120), (424, 45370), (520, 36994), (530, 36296), (689, 27920), (698, 27560), (848, 22685), (1040, 18497), (1060, 18148), (1378, 13960), (1396, 13780), (1745, 11024), (2120, 9074), (2756, 6980), (2792, 6890), (3445, 5584), (3490, 5512), (4240, 4537)]