19378700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 46663680

約数和(自身を除く): 27284980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 220, 223, 275, 316, 395, 446, 550, 790, 869, 892, 1100, 1115, 1580, 1738, 1975, 2230, 2453, 3476, 3950, 4345, 4460, 4906, 5575, 7900, 8690, 9812, 11150, 12265, 17380, 17617, 21725, 22300, 24530, 35234, 43450, 49060, 61325, 70468, 86900, 88085, 122650, 176170, 193787, 245300, 352340, 387574, 440425, 775148, 880850, 968935, 1761700, 1937870, 3875740, 4844675, 9689350, 19378700]

約数ペア:

[(1, 19378700), (2, 9689350), (4, 4844675), (5, 3875740), (10, 1937870), (11, 1761700), (20, 968935), (22, 880850), (25, 775148), (44, 440425), (50, 387574), (55, 352340), (79, 245300), (100, 193787), (110, 176170), (158, 122650), (220, 88085), (223, 86900), (275, 70468), (316, 61325), (395, 49060), (446, 43450), (550, 35234), (790, 24530), (869, 22300), (892, 21725), (1100, 17617), (1115, 17380), (1580, 12265), (1738, 11150), (1975, 9812), (2230, 8690), (2453, 7900), (3476, 5575), (3950, 4906), (4345, 4460)]