180977920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8317}}^1$

素因数の和:8355

約数の個数: 72

約数和(自身を含む): 459053784

約数和(自身を除く): 278075864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 4352, 5440, 8317, 10880, 16634, 21760, 33268, 41585, 66536, 83170, 133072, 141389, 166340, 266144, 282778, 332680, 532288, 565556, 665360, 706945, 1064576, 1131112, 1330720, 1413890, 2129152, 2262224, 2661440, 2827780, 4524448, 5322880, 5655560, 9048896, 10645760, 11311120, 18097792, 22622240, 36195584, 45244480, 90488960, 180977920]

約数ペア:

[(1, 180977920), (2, 90488960), (4, 45244480), (5, 36195584), (8, 22622240), (10, 18097792), (16, 11311120), (17, 10645760), (20, 9048896), (32, 5655560), (34, 5322880), (40, 4524448), (64, 2827780), (68, 2661440), (80, 2262224), (85, 2129152), (128, 1413890), (136, 1330720), (160, 1131112), (170, 1064576), (256, 706945), (272, 665360), (320, 565556), (340, 532288), (544, 332680), (640, 282778), (680, 266144), (1088, 166340), (1280, 141389), (1360, 133072), (2176, 83170), (2720, 66536), (4352, 41585), (5440, 33268), (8317, 21760), (10880, 16634)]