28400820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3559}}^1$

素因数の和:3597

約数の個数: 96

約数和(自身を含む): 95692800

約数和(自身を除く): 67291980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3559, 3990, 7118, 7980, 10677, 14236, 17795, 21354, 24913, 35590, 42708, 49826, 53385, 67621, 71180, 74739, 99652, 106770, 124565, 135242, 149478, 202863, 213540, 249130, 270484, 298956, 338105, 373695, 405726, 473347, 498260, 676210, 747390, 811452, 946694, 1014315, 1352420, 1420041, 1494780, 1893388, 2028630, 2366735, 2840082, 4057260, 4733470, 5680164, 7100205, 9466940, 14200410, 28400820]

約数ペア:

[(1, 28400820), (2, 14200410), (3, 9466940), (4, 7100205), (5, 5680164), (6, 4733470), (7, 4057260), (10, 2840082), (12, 2366735), (14, 2028630), (15, 1893388), (19, 1494780), (20, 1420041), (21, 1352420), (28, 1014315), (30, 946694), (35, 811452), (38, 747390), (42, 676210), (57, 498260), (60, 473347), (70, 405726), (76, 373695), (84, 338105), (95, 298956), (105, 270484), (114, 249130), (133, 213540), (140, 202863), (190, 149478), (210, 135242), (228, 124565), (266, 106770), (285, 99652), (380, 74739), (399, 71180), (420, 67621), (532, 53385), (570, 49826), (665, 42708), (798, 35590), (1140, 24913), (1330, 21354), (1596, 17795), (1995, 14236), (2660, 10677), (3559, 7980), (3990, 7118)]