211793240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{170801}}^1$

素因数の和:170843

約数の個数: 32

約数和(自身を含む): 491909760

約数和(自身を除く): 280116520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 170801, 341602, 683204, 854005, 1366408, 1708010, 3416020, 5294831, 6832040, 10589662, 21179324, 26474155, 42358648, 52948310, 105896620, 211793240]

約数ペア:

[(1, 211793240), (2, 105896620), (4, 52948310), (5, 42358648), (8, 26474155), (10, 21179324), (20, 10589662), (31, 6832040), (40, 5294831), (62, 3416020), (124, 1708010), (155, 1366408), (248, 854005), (310, 683204), (620, 341602), (1240, 170801)]