161897820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{385471}}^1$

素因数の和:385490

約数の個数: 48

約数和(自身を含む): 518074368

約数和(自身を除く): 356176548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 385471, 770942, 1156413, 1541884, 1927355, 2312826, 2698297, 3854710, 4625652, 5396594, 5782065, 7709420, 8094891, 10793188, 11564130, 13491485, 16189782, 23128260, 26982970, 32379564, 40474455, 53965940, 80948910, 161897820]

約数ペア:

[(1, 161897820), (2, 80948910), (3, 53965940), (4, 40474455), (5, 32379564), (6, 26982970), (7, 23128260), (10, 16189782), (12, 13491485), (14, 11564130), (15, 10793188), (20, 8094891), (21, 7709420), (28, 5782065), (30, 5396594), (35, 4625652), (42, 3854710), (60, 2698297), (70, 2312826), (84, 1927355), (105, 1541884), (140, 1156413), (210, 770942), (420, 385471)]