320417552

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{613}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 767450880

約数和(自身を除く): 447033328

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 359, 364, 613, 718, 728, 1226, 1436, 1456, 2452, 2513, 2872, 4291, 4667, 4904, 5026, 5744, 7969, 8582, 9334, 9808, 10052, 15938, 17164, 18668, 20104, 31876, 32669, 34328, 37336, 40208, 55783, 63752, 65338, 68656, 74672, 111566, 127504, 130676, 220067, 223132, 261352, 440134, 446264, 522704, 880268, 892528, 1540469, 1760536, 2860871, 3080938, 3521072, 5721742, 6161876, 11443484, 12323752, 20026097, 22886968, 24647504, 40052194, 45773936, 80104388, 160208776, 320417552]

約数ペア:

[(1, 320417552), (2, 160208776), (4, 80104388), (7, 45773936), (8, 40052194), (13, 24647504), (14, 22886968), (16, 20026097), (26, 12323752), (28, 11443484), (52, 6161876), (56, 5721742), (91, 3521072), (104, 3080938), (112, 2860871), (182, 1760536), (208, 1540469), (359, 892528), (364, 880268), (613, 522704), (718, 446264), (728, 440134), (1226, 261352), (1436, 223132), (1456, 220067), (2452, 130676), (2513, 127504), (2872, 111566), (4291, 74672), (4667, 68656), (4904, 65338), (5026, 63752), (5744, 55783), (7969, 40208), (8582, 37336), (9334, 34328), (9808, 32669), (10052, 31876), (15938, 20104), (17164, 18668)]