821499420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{1783}}^1$

素因数の和:2899

約数の個数: 96

約数和(自身を含む): 2632670208

約数和(自身を除く): 1811170788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1097, 1783, 2194, 3291, 3566, 4388, 5349, 5485, 6582, 7132, 7679, 8915, 10698, 10970, 12481, 13164, 15358, 16455, 17830, 21396, 21940, 23037, 24962, 26745, 30716, 32910, 35660, 37443, 38395, 46074, 49924, 53490, 62405, 65820, 74886, 76790, 92148, 106980, 115185, 124810, 149772, 153580, 187215, 230370, 249620, 374430, 460740, 748860, 1955951, 3911902, 5867853, 7823804, 9779755, 11735706, 13691657, 19559510, 23471412, 27383314, 29339265, 39119020, 41074971, 54766628, 58678530, 68458285, 82149942, 117357060, 136916570, 164299884, 205374855, 273833140, 410749710, 821499420]

約数ペア:

[(1, 821499420), (2, 410749710), (3, 273833140), (4, 205374855), (5, 164299884), (6, 136916570), (7, 117357060), (10, 82149942), (12, 68458285), (14, 58678530), (15, 54766628), (20, 41074971), (21, 39119020), (28, 29339265), (30, 27383314), (35, 23471412), (42, 19559510), (60, 13691657), (70, 11735706), (84, 9779755), (105, 7823804), (140, 5867853), (210, 3911902), (420, 1955951), (1097, 748860), (1783, 460740), (2194, 374430), (3291, 249620), (3566, 230370), (4388, 187215), (5349, 153580), (5485, 149772), (6582, 124810), (7132, 115185), (7679, 106980), (8915, 92148), (10698, 76790), (10970, 74886), (12481, 65820), (13164, 62405), (15358, 53490), (16455, 49924), (17830, 46074), (21396, 38395), (21940, 37443), (23037, 35660), (24962, 32910), (26745, 30716)]