645126.00000000

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 112

約数和(自身を含む): 189335664

約数和(自身を除く): 116647984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 101, 104, 130, 160, 173, 202, 208, 260, 320, 346, 404, 416, 505, 520, 692, 808, 832, 865, 1010, 1040, 1313, 1384, 1616, 1730, 2020, 2080, 2249, 2626, 2768, 3232, 3460, 4040, 4160, 4498, 5252, 5536, 6464, 6565, 6920, 8080, 8996, 10504, 11072, 11245, 13130, 13840, 16160, 17473, 17992, 21008, 22490, 26260, 27680, 32320, 34946, 35984, 42016, 44980, 52520, 55360, 69892, 71968, 84032, 87365, 89960, 105040, 139784, 143936, 174730, 179920, 210080, 227149, 279568, 349460, 359840, 420160, 454298, 559136, 698920, 719680, 908596, 1118272, 1135745, 1397840, 1817192, 2271490, 2795680, 3634384, 4542980, 5591360, 7268768, 9085960, 14537536, 18171920, 36343840, 72687680]

約数ペア:

[(1, 72687680), (2, 36343840), (4, 18171920), (5, 14537536), (8, 9085960), (10, 7268768), (13, 5591360), (16, 4542980), (20, 3634384), (26, 2795680), (32, 2271490), (40, 1817192), (52, 1397840), (64, 1135745), (65, 1118272), (80, 908596), (101, 719680), (104, 698920), (130, 559136), (160, 454298), (173, 420160), (202, 359840), (208, 349460), (260, 279568), (320, 227149), (346, 210080), (404, 179920), (416, 174730), (505, 143936), (520, 139784), (692, 105040), (808, 89960), (832, 87365), (865, 84032), (1010, 71968), (1040, 69892), (1313, 55360), (1384, 52520), (1616, 44980), (1730, 42016), (2020, 35984), (2080, 34946), (2249, 32320), (2626, 27680), (2768, 26260), (3232, 22490), (3460, 21008), (4040, 17992), (4160, 17473), (4498, 16160), (5252, 13840), (5536, 13130), (6464, 11245), (6565, 11072), (6920, 10504), (8080, 8996)]