400031730

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{211657}}^1$

素因数の和:211680

約数の個数: 64

約数和(自身を含む): 1219150080

約数和(自身を除く): 819118350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 211657, 423314, 634971, 1058285, 1269942, 1481599, 1904913, 2116570, 2963198, 3174855, 3809826, 4444797, 5714739, 6349710, 7407995, 8889594, 9524565, 11429478, 13334391, 14815990, 19049130, 22223985, 26668782, 28573695, 40003173, 44447970, 57147390, 66671955, 80006346, 133343910, 200015865, 400031730]

約数ペア:

[(1, 400031730), (2, 200015865), (3, 133343910), (5, 80006346), (6, 66671955), (7, 57147390), (9, 44447970), (10, 40003173), (14, 28573695), (15, 26668782), (18, 22223985), (21, 19049130), (27, 14815990), (30, 13334391), (35, 11429478), (42, 9524565), (45, 8889594), (54, 7407995), (63, 6349710), (70, 5714739), (90, 4444797), (105, 3809826), (126, 3174855), (135, 2963198), (189, 2116570), (210, 1904913), (270, 1481599), (315, 1269942), (378, 1058285), (630, 634971), (945, 423314), (1890, 211657)]