257399532

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2709

約数の個数: 120

約数和(自身を含む): 756445536

約数和(自身を除く): 499046004

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 46, 52, 54, 69, 78, 81, 92, 108, 117, 138, 156, 162, 207, 234, 276, 299, 324, 351, 414, 468, 598, 621, 702, 828, 897, 1053, 1196, 1242, 1404, 1794, 1863, 2106, 2484, 2657, 2691, 3588, 3726, 4212, 5314, 5382, 7452, 7971, 8073, 10628, 10764, 15942, 16146, 23913, 24219, 31884, 32292, 34541, 47826, 48438, 61111, 69082, 71739, 95652, 96876, 103623, 122222, 138164, 143478, 183333, 207246, 215217, 244444, 286956, 310869, 366666, 414492, 430434, 549999, 621738, 733332, 794443, 860868, 932607, 1099998, 1243476, 1588886, 1649997, 1865214, 2199996, 2383329, 2797821, 3177772, 3299994, 3730428, 4766658, 4949991, 5595642, 6599988, 7149987, 9533316, 9899982, 11191284, 14299974, 19799964, 21449961, 28599948, 42899922, 64349883, 85799844, 128699766, 257399532]

約数ペア:

[(1, 257399532), (2, 128699766), (3, 85799844), (4, 64349883), (6, 42899922), (9, 28599948), (12, 21449961), (13, 19799964), (18, 14299974), (23, 11191284), (26, 9899982), (27, 9533316), (36, 7149987), (39, 6599988), (46, 5595642), (52, 4949991), (54, 4766658), (69, 3730428), (78, 3299994), (81, 3177772), (92, 2797821), (108, 2383329), (117, 2199996), (138, 1865214), (156, 1649997), (162, 1588886), (207, 1243476), (234, 1099998), (276, 932607), (299, 860868), (324, 794443), (351, 733332), (414, 621738), (468, 549999), (598, 430434), (621, 414492), (702, 366666), (828, 310869), (897, 286956), (1053, 244444), (1196, 215217), (1242, 207246), (1404, 183333), (1794, 143478), (1863, 138164), (2106, 122222), (2484, 103623), (2657, 96876), (2691, 95652), (3588, 71739), (3726, 69082), (4212, 61111), (5314, 48438), (5382, 47826), (7452, 34541), (7971, 32292), (8073, 31884), (10628, 24219), (10764, 23913), (15942, 16146)]