19426030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 20853650

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 73, 89, 115, 130, 146, 178, 230, 299, 365, 445, 598, 730, 890, 949, 1157, 1495, 1679, 1898, 2047, 2314, 2990, 3358, 4094, 4745, 5785, 6497, 8395, 9490, 10235, 11570, 12994, 16790, 20470, 21827, 26611, 32485, 43654, 53222, 64970, 84461, 109135, 133055, 149431, 168922, 218270, 266110, 298862, 422305, 747155, 844610, 1494310, 1942603, 3885206, 9713015, 19426030]

約数ペア:

[(1, 19426030), (2, 9713015), (5, 3885206), (10, 1942603), (13, 1494310), (23, 844610), (26, 747155), (46, 422305), (65, 298862), (73, 266110), (89, 218270), (115, 168922), (130, 149431), (146, 133055), (178, 109135), (230, 84461), (299, 64970), (365, 53222), (445, 43654), (598, 32485), (730, 26611), (890, 21827), (949, 20470), (1157, 16790), (1495, 12994), (1679, 11570), (1898, 10235), (2047, 9490), (2314, 8395), (2990, 6497), (3358, 5785), (4094, 4745)]