398375952

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{638423}}^1$

素因数の和:638447

約数の個数: 40

約数和(自身を含む): 1108304064

約数和(自身を除く): 709928112

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 638423, 1276846, 1915269, 2553692, 3830538, 5107384, 7661076, 8299499, 10214768, 15322152, 16598998, 24898497, 30644304, 33197996, 49796994, 66395992, 99593988, 132791984, 199187976, 398375952]

約数ペア:

[(1, 398375952), (2, 199187976), (3, 132791984), (4, 99593988), (6, 66395992), (8, 49796994), (12, 33197996), (13, 30644304), (16, 24898497), (24, 16598998), (26, 15322152), (39, 10214768), (48, 8299499), (52, 7661076), (78, 5107384), (104, 3830538), (156, 2553692), (208, 1915269), (312, 1276846), (624, 638423)]