820134080

素因数分解:

$2^6\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3709}}^1$

素因数の和:4417

約数の個数: 56

約数和(自身を含む): 1956297840

約数和(自身を除く): 1136163760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 691, 1382, 2764, 3455, 3709, 5528, 6910, 7418, 11056, 13820, 14836, 18545, 22112, 27640, 29672, 37090, 44224, 55280, 59344, 74180, 110560, 118688, 148360, 221120, 237376, 296720, 593440, 1186880, 2562919, 5125838, 10251676, 12814595, 20503352, 25629190, 41006704, 51258380, 82013408, 102516760, 164026816, 205033520, 410067040, 820134080]

約数ペア:

[(1, 820134080), (2, 410067040), (4, 205033520), (5, 164026816), (8, 102516760), (10, 82013408), (16, 51258380), (20, 41006704), (32, 25629190), (40, 20503352), (64, 12814595), (80, 10251676), (160, 5125838), (320, 2562919), (691, 1186880), (1382, 593440), (2764, 296720), (3455, 237376), (3709, 221120), (5528, 148360), (6910, 118688), (7418, 110560), (11056, 74180), (13820, 59344), (14836, 55280), (18545, 44224), (22112, 37090), (27640, 29672)]