81040260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1229}}^1$

素因数の和:1405

約数の個数: 96

約数和(自身を含む): 261192960

約数和(自身を除く): 180152700

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, 157, 210, 314, 420, 471, 628, 785, 942, 1099, 1229, 1570, 1884, 2198, 2355, 2458, 3140, 3297, 3687, 4396, 4710, 4916, 5495, 6145, 6594, 7374, 8603, 9420, 10990, 12290, 13188, 14748, 16485, 17206, 18435, 21980, 24580, 25809, 32970, 34412, 36870, 43015, 51618, 65940, 73740, 86030, 103236, 129045, 172060, 192953, 258090, 385906, 516180, 578859, 771812, 964765, 1157718, 1350671, 1929530, 2315436, 2701342, 2894295, 3859060, 4052013, 5402684, 5788590, 6753355, 8104026, 11577180, 13506710, 16208052, 20260065, 27013420, 40520130, 81040260]

約数ペア:

[(1, 81040260), (2, 40520130), (3, 27013420), (4, 20260065), (5, 16208052), (6, 13506710), (7, 11577180), (10, 8104026), (12, 6753355), (14, 5788590), (15, 5402684), (20, 4052013), (21, 3859060), (28, 2894295), (30, 2701342), (35, 2315436), (42, 1929530), (60, 1350671), (70, 1157718), (84, 964765), (105, 771812), (140, 578859), (157, 516180), (210, 385906), (314, 258090), (420, 192953), (471, 172060), (628, 129045), (785, 103236), (942, 86030), (1099, 73740), (1229, 65940), (1570, 51618), (1884, 43015), (2198, 36870), (2355, 34412), (2458, 32970), (3140, 25809), (3297, 24580), (3687, 21980), (4396, 18435), (4710, 17206), (4916, 16485), (5495, 14748), (6145, 13188), (6594, 12290), (7374, 10990), (8603, 9420)]