396281990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{919}}^1$

素因数の和:1077

約数の個数: 64

約数和(自身を含む): 801239040

約数和(自身を除く): 404957050

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 107, 130, 155, 214, 310, 403, 535, 806, 919, 1070, 1391, 1838, 2015, 2782, 3317, 4030, 4595, 6634, 6955, 9190, 11947, 13910, 16585, 23894, 28489, 33170, 43121, 56978, 59735, 86242, 98333, 119470, 142445, 196666, 215605, 284890, 370357, 431210, 491665, 740714, 983330, 1278329, 1851785, 2556658, 3048323, 3703570, 6096646, 6391645, 12783290, 15241615, 30483230, 39628199, 79256398, 198140995, 396281990]

約数ペア:

[(1, 396281990), (2, 198140995), (5, 79256398), (10, 39628199), (13, 30483230), (26, 15241615), (31, 12783290), (62, 6391645), (65, 6096646), (107, 3703570), (130, 3048323), (155, 2556658), (214, 1851785), (310, 1278329), (403, 983330), (535, 740714), (806, 491665), (919, 431210), (1070, 370357), (1391, 284890), (1838, 215605), (2015, 196666), (2782, 142445), (3317, 119470), (4030, 98333), (4595, 86242), (6634, 59735), (6955, 56978), (9190, 43121), (11947, 33170), (13910, 28489), (16585, 23894)]