28642740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1451}}^1$

素因数の和:1517

約数の個数: 96

約数和(自身を含む): 93671424

約数和(自身を除く): 65028684

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1316, 1410, 1451, 1645, 1974, 2820, 2902, 3290, 3948, 4353, 4935, 5804, 6580, 7255, 8706, 9870, 10157, 14510, 17412, 19740, 20314, 21765, 29020, 30471, 40628, 43530, 50785, 60942, 68197, 87060, 101570, 121884, 136394, 152355, 203140, 204591, 272788, 304710, 340985, 409182, 477379, 609420, 681970, 818364, 954758, 1022955, 1363940, 1432137, 1909516, 2045910, 2386895, 2864274, 4091820, 4773790, 5728548, 7160685, 9547580, 14321370, 28642740]

約数ペア:

[(1, 28642740), (2, 14321370), (3, 9547580), (4, 7160685), (5, 5728548), (6, 4773790), (7, 4091820), (10, 2864274), (12, 2386895), (14, 2045910), (15, 1909516), (20, 1432137), (21, 1363940), (28, 1022955), (30, 954758), (35, 818364), (42, 681970), (47, 609420), (60, 477379), (70, 409182), (84, 340985), (94, 304710), (105, 272788), (140, 204591), (141, 203140), (188, 152355), (210, 136394), (235, 121884), (282, 101570), (329, 87060), (420, 68197), (470, 60942), (564, 50785), (658, 43530), (705, 40628), (940, 30471), (987, 29020), (1316, 21765), (1410, 20314), (1451, 19740), (1645, 17412), (1974, 14510), (2820, 10157), (2902, 9870), (3290, 8706), (3948, 7255), (4353, 6580), (4935, 5804)]