20424950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:166

約数の個数: 72

約数和(自身を含む): 47465712

約数和(自身を除く): 27040762

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 67, 70, 91, 130, 134, 175, 182, 325, 335, 350, 455, 469, 650, 670, 871, 910, 938, 1675, 1742, 2275, 2345, 3350, 4355, 4489, 4550, 4690, 6097, 8710, 8978, 11725, 12194, 21775, 22445, 23450, 30485, 31423, 43550, 44890, 58357, 60970, 62846, 112225, 116714, 152425, 157115, 224450, 291785, 304850, 314230, 408499, 583570, 785575, 816998, 1458925, 1571150, 2042495, 2917850, 4084990, 10212475, 20424950]

約数ペア:

[(1, 20424950), (2, 10212475), (5, 4084990), (7, 2917850), (10, 2042495), (13, 1571150), (14, 1458925), (25, 816998), (26, 785575), (35, 583570), (50, 408499), (65, 314230), (67, 304850), (70, 291785), (91, 224450), (130, 157115), (134, 152425), (175, 116714), (182, 112225), (325, 62846), (335, 60970), (350, 58357), (455, 44890), (469, 43550), (650, 31423), (670, 30485), (871, 23450), (910, 22445), (938, 21775), (1675, 12194), (1742, 11725), (2275, 8978), (2345, 8710), (3350, 6097), (4355, 4690), (4489, 4550)]