30491720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 81751680

約数和(自身を除く): 51259960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 49, 56, 70, 94, 98, 140, 188, 196, 235, 245, 280, 329, 331, 376, 392, 470, 490, 658, 662, 940, 980, 1316, 1324, 1645, 1655, 1880, 1960, 2303, 2317, 2632, 2648, 3290, 3310, 4606, 4634, 6580, 6620, 9212, 9268, 11515, 11585, 13160, 13240, 15557, 16219, 18424, 18536, 23030, 23170, 31114, 32438, 46060, 46340, 62228, 64876, 77785, 81095, 92120, 92680, 108899, 124456, 129752, 155570, 162190, 217798, 311140, 324380, 435596, 544495, 622280, 648760, 762293, 871192, 1088990, 1524586, 2177980, 3049172, 3811465, 4355960, 6098344, 7622930, 15245860, 30491720]

約数ペア:

[(1, 30491720), (2, 15245860), (4, 7622930), (5, 6098344), (7, 4355960), (8, 3811465), (10, 3049172), (14, 2177980), (20, 1524586), (28, 1088990), (35, 871192), (40, 762293), (47, 648760), (49, 622280), (56, 544495), (70, 435596), (94, 324380), (98, 311140), (140, 217798), (188, 162190), (196, 155570), (235, 129752), (245, 124456), (280, 108899), (329, 92680), (331, 92120), (376, 81095), (392, 77785), (470, 64876), (490, 62228), (658, 46340), (662, 46060), (940, 32438), (980, 31114), (1316, 23170), (1324, 23030), (1645, 18536), (1655, 18424), (1880, 16219), (1960, 15557), (2303, 13240), (2317, 13160), (2632, 11585), (2648, 11515), (3290, 9268), (3310, 9212), (4606, 6620), (4634, 6580)]