127123880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1619}}^1$

素因数の和:1794

約数の個数: 64

約数和(自身を含む): 310262400

約数和(自身を除く): 183138520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1208, 1510, 1619, 1963, 3020, 3238, 3926, 6040, 6476, 7852, 8095, 9815, 12952, 15704, 16190, 19630, 21047, 32380, 39260, 42094, 64760, 78520, 84188, 105235, 168376, 210470, 244469, 420940, 488938, 841880, 977876, 1222345, 1955752, 2444690, 3178097, 4889380, 6356194, 9778760, 12712388, 15890485, 25424776, 31780970, 63561940, 127123880]

約数ペア:

[(1, 127123880), (2, 63561940), (4, 31780970), (5, 25424776), (8, 15890485), (10, 12712388), (13, 9778760), (20, 6356194), (26, 4889380), (40, 3178097), (52, 2444690), (65, 1955752), (104, 1222345), (130, 977876), (151, 841880), (260, 488938), (302, 420940), (520, 244469), (604, 210470), (755, 168376), (1208, 105235), (1510, 84188), (1619, 78520), (1963, 64760), (3020, 42094), (3238, 39260), (3926, 32380), (6040, 21047), (6476, 19630), (7852, 16190), (8095, 15704), (9815, 12952)]