399402388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:821

約数の個数: 96

約数和(自身を含む): 916070400

約数和(自身を除く): 516668012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 59, 62, 77, 118, 124, 154, 217, 236, 308, 341, 413, 434, 649, 682, 709, 826, 868, 1298, 1364, 1418, 1652, 1829, 2387, 2596, 2836, 3658, 4543, 4774, 4963, 7316, 7799, 9086, 9548, 9926, 12803, 15598, 18172, 19852, 20119, 21979, 25606, 31196, 40238, 41831, 43958, 51212, 54593, 80476, 83662, 87916, 109186, 140833, 153853, 167324, 218372, 241769, 281666, 292817, 307706, 460141, 483538, 563332, 585634, 615412, 920282, 967076, 1171268, 1296761, 1692383, 1840564, 2593522, 3220987, 3384766, 5187044, 6441974, 6769532, 9077327, 12883948, 14264371, 18154654, 28528742, 36309308, 57057484, 99850597, 199701194, 399402388]

約数ペア:

[(1, 399402388), (2, 199701194), (4, 99850597), (7, 57057484), (11, 36309308), (14, 28528742), (22, 18154654), (28, 14264371), (31, 12883948), (44, 9077327), (59, 6769532), (62, 6441974), (77, 5187044), (118, 3384766), (124, 3220987), (154, 2593522), (217, 1840564), (236, 1692383), (308, 1296761), (341, 1171268), (413, 967076), (434, 920282), (649, 615412), (682, 585634), (709, 563332), (826, 483538), (868, 460141), (1298, 307706), (1364, 292817), (1418, 281666), (1652, 241769), (1829, 218372), (2387, 167324), (2596, 153853), (2836, 140833), (3658, 109186), (4543, 87916), (4774, 83662), (4963, 80476), (7316, 54593), (7799, 51212), (9086, 43958), (9548, 41831), (9926, 40238), (12803, 31196), (15598, 25606), (18172, 21979), (19852, 20119)]