19921408

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 80

約数和(自身を含む): 44512776

約数和(自身を除く): 24591368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 73, 82, 104, 128, 146, 164, 208, 256, 292, 328, 416, 512, 533, 584, 656, 832, 949, 1066, 1168, 1312, 1664, 1898, 2132, 2336, 2624, 2993, 3328, 3796, 4264, 4672, 5248, 5986, 6656, 7592, 8528, 9344, 10496, 11972, 15184, 17056, 18688, 20992, 23944, 30368, 34112, 37376, 38909, 47888, 60736, 68224, 77818, 95776, 121472, 136448, 155636, 191552, 242944, 272896, 311272, 383104, 485888, 622544, 766208, 1245088, 1532416, 2490176, 4980352, 9960704, 19921408]

約数ペア:

[(1, 19921408), (2, 9960704), (4, 4980352), (8, 2490176), (13, 1532416), (16, 1245088), (26, 766208), (32, 622544), (41, 485888), (52, 383104), (64, 311272), (73, 272896), (82, 242944), (104, 191552), (128, 155636), (146, 136448), (164, 121472), (208, 95776), (256, 77818), (292, 68224), (328, 60736), (416, 47888), (512, 38909), (533, 37376), (584, 34112), (656, 30368), (832, 23944), (949, 20992), (1066, 18688), (1168, 17056), (1312, 15184), (1664, 11972), (1898, 10496), (2132, 9344), (2336, 8528), (2624, 7592), (2993, 6656), (3328, 5986), (3796, 5248), (4264, 4672)]