28625212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 68774832

約数和(自身を除く): 40149620

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 71, 77, 98, 119, 121, 142, 154, 187, 196, 238, 242, 284, 308, 374, 476, 484, 497, 539, 748, 781, 833, 847, 994, 1078, 1207, 1309, 1562, 1666, 1694, 1988, 2057, 2156, 2414, 2618, 3124, 3332, 3388, 3479, 4114, 4828, 5236, 5467, 5929, 6958, 8228, 8449, 8591, 9163, 10934, 11858, 13277, 13916, 14399, 16898, 17182, 18326, 21868, 23716, 26554, 28798, 33796, 34364, 36652, 38269, 53108, 57596, 59143, 60137, 76538, 92939, 100793, 118286, 120274, 146047, 153076, 185878, 201586, 236572, 240548, 292094, 371756, 403172, 420959, 584188, 650573, 841918, 1022329, 1301146, 1683836, 2044658, 2602292, 4089316, 7156303, 14312606, 28625212]

約数ペア:

[(1, 28625212), (2, 14312606), (4, 7156303), (7, 4089316), (11, 2602292), (14, 2044658), (17, 1683836), (22, 1301146), (28, 1022329), (34, 841918), (44, 650573), (49, 584188), (68, 420959), (71, 403172), (77, 371756), (98, 292094), (119, 240548), (121, 236572), (142, 201586), (154, 185878), (187, 153076), (196, 146047), (238, 120274), (242, 118286), (284, 100793), (308, 92939), (374, 76538), (476, 60137), (484, 59143), (497, 57596), (539, 53108), (748, 38269), (781, 36652), (833, 34364), (847, 33796), (994, 28798), (1078, 26554), (1207, 23716), (1309, 21868), (1562, 18326), (1666, 17182), (1694, 16898), (1988, 14399), (2057, 13916), (2156, 13277), (2414, 11858), (2618, 10934), (3124, 9163), (3332, 8591), (3388, 8449), (3479, 8228), (4114, 6958), (4828, 5929), (5236, 5467)]