28139120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 70120512

約数和(自身を除く): 41981392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 328, 368, 373, 410, 460, 656, 746, 820, 920, 943, 1492, 1640, 1840, 1865, 1886, 2984, 3280, 3730, 3772, 4715, 5968, 7460, 7544, 8579, 9430, 14920, 15088, 15293, 17158, 18860, 29840, 30586, 34316, 37720, 42895, 61172, 68632, 75440, 76465, 85790, 122344, 137264, 152930, 171580, 244688, 305860, 343160, 351739, 611720, 686320, 703478, 1223440, 1406956, 1758695, 2813912, 3517390, 5627824, 7034780, 14069560, 28139120]

約数ペア:

[(1, 28139120), (2, 14069560), (4, 7034780), (5, 5627824), (8, 3517390), (10, 2813912), (16, 1758695), (20, 1406956), (23, 1223440), (40, 703478), (41, 686320), (46, 611720), (80, 351739), (82, 343160), (92, 305860), (115, 244688), (164, 171580), (184, 152930), (205, 137264), (230, 122344), (328, 85790), (368, 76465), (373, 75440), (410, 68632), (460, 61172), (656, 42895), (746, 37720), (820, 34316), (920, 30586), (943, 29840), (1492, 18860), (1640, 17158), (1840, 15293), (1865, 15088), (1886, 14920), (2984, 9430), (3280, 8579), (3730, 7544), (3772, 7460), (4715, 5968)]