254112580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{6719}}^1$

素因数の和:6820

約数の個数: 48

約数和(自身を含む): 559964160

約数和(自身を除く): 305851580

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 6719, 7564, 9455, 13438, 18910, 26876, 33595, 37820, 67190, 134380, 208289, 409859, 416578, 819718, 833156, 1041445, 1639436, 2049295, 2082890, 4098590, 4165780, 8197180, 12705629, 25411258, 50822516, 63528145, 127056290, 254112580]

約数ペア:

[(1, 254112580), (2, 127056290), (4, 63528145), (5, 50822516), (10, 25411258), (20, 12705629), (31, 8197180), (61, 4165780), (62, 4098590), (122, 2082890), (124, 2049295), (155, 1639436), (244, 1041445), (305, 833156), (310, 819718), (610, 416578), (620, 409859), (1220, 208289), (1891, 134380), (3782, 67190), (6719, 37820), (7564, 33595), (9455, 26876), (13438, 18910)]