19563960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12541}}^1$

素因数の和:12568

約数の個数: 64

約数和(自身を含む): 63211680

約数和(自身を除く): 43647720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12541, 25082, 37623, 50164, 62705, 75246, 100328, 125410, 150492, 163033, 188115, 250820, 300984, 326066, 376230, 489099, 501640, 652132, 752460, 815165, 978198, 1304264, 1504920, 1630330, 1956396, 2445495, 3260660, 3912792, 4890990, 6521320, 9781980, 19563960]

約数ペア:

[(1, 19563960), (2, 9781980), (3, 6521320), (4, 4890990), (5, 3912792), (6, 3260660), (8, 2445495), (10, 1956396), (12, 1630330), (13, 1504920), (15, 1304264), (20, 978198), (24, 815165), (26, 752460), (30, 652132), (39, 501640), (40, 489099), (52, 376230), (60, 326066), (65, 300984), (78, 250820), (104, 188115), (120, 163033), (130, 150492), (156, 125410), (195, 100328), (260, 75246), (312, 62705), (390, 50164), (520, 37623), (780, 25082), (1560, 12541)]