28731885

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 60060672

約数和(自身を除く): 31328787

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 49, 65, 91, 93, 97, 105, 147, 155, 195, 217, 245, 273, 291, 403, 455, 465, 485, 637, 651, 679, 735, 1085, 1209, 1261, 1365, 1455, 1519, 1911, 2015, 2037, 2821, 3007, 3185, 3255, 3395, 3783, 4557, 4753, 6045, 6305, 7595, 8463, 8827, 9021, 9555, 10185, 14105, 14259, 15035, 18915, 19747, 21049, 22785, 23765, 26481, 39091, 42315, 44135, 45105, 59241, 61789, 63147, 71295, 98735, 105245, 117273, 132405, 147343, 185367, 195455, 273637, 296205, 308945, 315735, 442029, 586365, 736715, 820911, 926835, 1368185, 1915459, 2210145, 4104555, 5746377, 9577295, 28731885]

約数ペア:

[(1, 28731885), (3, 9577295), (5, 5746377), (7, 4104555), (13, 2210145), (15, 1915459), (21, 1368185), (31, 926835), (35, 820911), (39, 736715), (49, 586365), (65, 442029), (91, 315735), (93, 308945), (97, 296205), (105, 273637), (147, 195455), (155, 185367), (195, 147343), (217, 132405), (245, 117273), (273, 105245), (291, 98735), (403, 71295), (455, 63147), (465, 61789), (485, 59241), (637, 45105), (651, 44135), (679, 42315), (735, 39091), (1085, 26481), (1209, 23765), (1261, 22785), (1365, 21049), (1455, 19747), (1519, 18915), (1911, 15035), (2015, 14259), (2037, 14105), (2821, 10185), (3007, 9555), (3185, 9021), (3255, 8827), (3395, 8463), (3783, 7595), (4557, 6305), (4753, 6045)]