401791806

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:591

約数の個数: 128

約数和(自身を含む): 1021440000

約数和(自身を除く): 619648194

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 37, 39, 54, 62, 74, 78, 93, 111, 117, 186, 222, 234, 279, 333, 351, 403, 481, 499, 558, 666, 702, 806, 837, 962, 998, 999, 1147, 1209, 1443, 1497, 1674, 1998, 2294, 2418, 2886, 2994, 3441, 3627, 4329, 4491, 6487, 6882, 7254, 8658, 8982, 10323, 10881, 12974, 12987, 13473, 14911, 15469, 18463, 19461, 20646, 21762, 25974, 26946, 29822, 30938, 30969, 36926, 38922, 44733, 46407, 55389, 58383, 61938, 89466, 92814, 110778, 116766, 134199, 139221, 166167, 175149, 201097, 240019, 268398, 278442, 332334, 350298, 402194, 402597, 417663, 480038, 498501, 572353, 603291, 720057, 805194, 835326, 997002, 1144706, 1206582, 1440114, 1717059, 1809873, 2160171, 3434118, 3619746, 4320342, 5151177, 5429619, 6480513, 7440589, 10302354, 10859238, 12961026, 14881178, 15453531, 22321767, 30907062, 44643534, 66965301, 133930602, 200895903, 401791806]

約数ペア:

[(1, 401791806), (2, 200895903), (3, 133930602), (6, 66965301), (9, 44643534), (13, 30907062), (18, 22321767), (26, 15453531), (27, 14881178), (31, 12961026), (37, 10859238), (39, 10302354), (54, 7440589), (62, 6480513), (74, 5429619), (78, 5151177), (93, 4320342), (111, 3619746), (117, 3434118), (186, 2160171), (222, 1809873), (234, 1717059), (279, 1440114), (333, 1206582), (351, 1144706), (403, 997002), (481, 835326), (499, 805194), (558, 720057), (666, 603291), (702, 572353), (806, 498501), (837, 480038), (962, 417663), (998, 402597), (999, 402194), (1147, 350298), (1209, 332334), (1443, 278442), (1497, 268398), (1674, 240019), (1998, 201097), (2294, 175149), (2418, 166167), (2886, 139221), (2994, 134199), (3441, 116766), (3627, 110778), (4329, 92814), (4491, 89466), (6487, 61938), (6882, 58383), (7254, 55389), (8658, 46407), (8982, 44733), (10323, 38922), (10881, 36926), (12974, 30969), (12987, 30938), (13473, 29822), (14911, 26946), (15469, 25974), (18463, 21762), (19461, 20646)]