19619340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25153}}^1$

素因数の和:25178

約数の個数: 48

約数和(自身を含む): 59162208

約数和(自身を除く): 39542868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25153, 50306, 75459, 100612, 125765, 150918, 251530, 301836, 326989, 377295, 503060, 653978, 754590, 980967, 1307956, 1509180, 1634945, 1961934, 3269890, 3923868, 4904835, 6539780, 9809670, 19619340]

約数ペア:

[(1, 19619340), (2, 9809670), (3, 6539780), (4, 4904835), (5, 3923868), (6, 3269890), (10, 1961934), (12, 1634945), (13, 1509180), (15, 1307956), (20, 980967), (26, 754590), (30, 653978), (39, 503060), (52, 377295), (60, 326989), (65, 301836), (78, 251530), (130, 150918), (156, 125765), (195, 100612), (260, 75459), (390, 50306), (780, 25153)]