2557590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 64

約数和(自身を含む): 7395840

約数和(自身を除く): 4838250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 641, 665, 798, 1282, 1330, 1923, 1995, 3205, 3846, 3990, 4487, 6410, 8974, 9615, 12179, 13461, 19230, 22435, 24358, 26922, 36537, 44870, 60895, 67305, 73074, 85253, 121790, 134610, 170506, 182685, 255759, 365370, 426265, 511518, 852530, 1278795, 2557590]

約数ペア:

[(1, 2557590), (2, 1278795), (3, 852530), (5, 511518), (6, 426265), (7, 365370), (10, 255759), (14, 182685), (15, 170506), (19, 134610), (21, 121790), (30, 85253), (35, 73074), (38, 67305), (42, 60895), (57, 44870), (70, 36537), (95, 26922), (105, 24358), (114, 22435), (133, 19230), (190, 13461), (210, 12179), (266, 9615), (285, 8974), (399, 6410), (570, 4487), (641, 3990), (665, 3846), (798, 3205), (1282, 1995), (1330, 1923)]