40072780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 95855760

約数和(自身を除く): 55782980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 121, 145, 220, 242, 290, 319, 484, 571, 580, 605, 638, 1142, 1210, 1276, 1595, 2284, 2420, 2855, 3190, 3509, 5710, 6281, 6380, 7018, 11420, 12562, 14036, 16559, 17545, 25124, 31405, 33118, 35090, 62810, 66236, 69091, 70180, 82795, 125620, 138182, 165590, 182149, 276364, 331180, 345455, 364298, 690910, 728596, 910745, 1381820, 1821490, 2003639, 3642980, 4007278, 8014556, 10018195, 20036390, 40072780]

約数ペア:

[(1, 40072780), (2, 20036390), (4, 10018195), (5, 8014556), (10, 4007278), (11, 3642980), (20, 2003639), (22, 1821490), (29, 1381820), (44, 910745), (55, 728596), (58, 690910), (110, 364298), (116, 345455), (121, 331180), (145, 276364), (220, 182149), (242, 165590), (290, 138182), (319, 125620), (484, 82795), (571, 70180), (580, 69091), (605, 66236), (638, 62810), (1142, 35090), (1210, 33118), (1276, 31405), (1595, 25124), (2284, 17545), (2420, 16559), (2855, 14036), (3190, 12562), (3509, 11420), (5710, 7018), (6281, 6380)]