199759980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{475619}}^1$

素因数の和:475638

約数の個数: 48

約数和(自身を含む): 639233280

約数和(自身を除く): 439473300

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, 475619, 951238, 1426857, 1902476, 2378095, 2853714, 3329333, 4756190, 5707428, 6658666, 7134285, 9512380, 9987999, 13317332, 14268570, 16646665, 19975998, 28537140, 33293330, 39951996, 49939995, 66586660, 99879990, 199759980]

約数ペア:

[(1, 199759980), (2, 99879990), (3, 66586660), (4, 49939995), (5, 39951996), (6, 33293330), (7, 28537140), (10, 19975998), (12, 16646665), (14, 14268570), (15, 13317332), (20, 9987999), (21, 9512380), (28, 7134285), (30, 6658666), (35, 5707428), (42, 4756190), (60, 3329333), (70, 2853714), (84, 2378095), (105, 1902476), (140, 1426857), (210, 951238), (420, 475619)]