64939980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154619}}^1$

素因数の和:154638

約数の個数: 48

約数和(自身を含む): 207809280

約数和(自身を除く): 142869300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 154619, 309238, 463857, 618476, 773095, 927714, 1082333, 1546190, 1855428, 2164666, 2319285, 3092380, 3246999, 4329332, 4638570, 5411665, 6493998, 9277140, 10823330, 12987996, 16234995, 21646660, 32469990, 64939980]

約数ペア:

[(1, 64939980), (2, 32469990), (3, 21646660), (4, 16234995), (5, 12987996), (6, 10823330), (7, 9277140), (10, 6493998), (12, 5411665), (14, 4638570), (15, 4329332), (20, 3246999), (21, 3092380), (28, 2319285), (30, 2164666), (35, 1855428), (42, 1546190), (60, 1082333), (70, 927714), (84, 773095), (105, 618476), (140, 463857), (210, 309238), (420, 154619)]