19009510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 20181530

約数列:

[1, 2, 5, 10, 13, 26, 31, 53, 62, 65, 89, 106, 130, 155, 178, 265, 310, 403, 445, 530, 689, 806, 890, 1157, 1378, 1643, 2015, 2314, 2759, 3286, 3445, 4030, 4717, 5518, 5785, 6890, 8215, 9434, 11570, 13795, 16430, 21359, 23585, 27590, 35867, 42718, 47170, 61321, 71734, 106795, 122642, 146227, 179335, 213590, 292454, 306605, 358670, 613210, 731135, 1462270, 1900951, 3801902, 9504755, 19009510]

約数ペア:

[(1, 19009510), (2, 9504755), (5, 3801902), (10, 1900951), (13, 1462270), (26, 731135), (31, 613210), (53, 358670), (62, 306605), (65, 292454), (89, 213590), (106, 179335), (130, 146227), (155, 122642), (178, 106795), (265, 71734), (310, 61321), (403, 47170), (445, 42718), (530, 35867), (689, 27590), (806, 23585), (890, 21359), (1157, 16430), (1378, 13795), (1643, 11570), (2015, 9434), (2314, 8215), (2759, 6890), (3286, 5785), (3445, 5518), (4030, 4717)]