81963960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52541}}^1$

素因数の和:52568

約数の個数: 64

約数和(自身を含む): 264811680

約数和(自身を除く): 182847720

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, 52541, 105082, 157623, 210164, 262705, 315246, 420328, 525410, 630492, 683033, 788115, 1050820, 1260984, 1366066, 1576230, 2049099, 2101640, 2732132, 3152460, 3415165, 4098198, 5464264, 6304920, 6830330, 8196396, 10245495, 13660660, 16392792, 20490990, 27321320, 40981980, 81963960]

約数ペア:

[(1, 81963960), (2, 40981980), (3, 27321320), (4, 20490990), (5, 16392792), (6, 13660660), (8, 10245495), (10, 8196396), (12, 6830330), (13, 6304920), (15, 5464264), (20, 4098198), (24, 3415165), (26, 3152460), (30, 2732132), (39, 2101640), (40, 2049099), (52, 1576230), (60, 1366066), (65, 1260984), (78, 1050820), (104, 788115), (120, 683033), (130, 630492), (156, 525410), (195, 420328), (260, 315246), (312, 262705), (390, 210164), (520, 157623), (780, 105082), (1560, 52541)]