391270740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{931597}}^1$

素因数の和:931616

約数の個数: 48

約数和(自身を含む): 1252067712

約数和(自身を除く): 860796972

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, 931597, 1863194, 2794791, 3726388, 4657985, 5589582, 6521179, 9315970, 11179164, 13042358, 13973955, 18631940, 19563537, 26084716, 27947910, 32605895, 39127074, 55895820, 65211790, 78254148, 97817685, 130423580, 195635370, 391270740]

約数ペア:

[(1, 391270740), (2, 195635370), (3, 130423580), (4, 97817685), (5, 78254148), (6, 65211790), (7, 55895820), (10, 39127074), (12, 32605895), (14, 27947910), (15, 26084716), (20, 19563537), (21, 18631940), (28, 13973955), (30, 13042358), (35, 11179164), (42, 9315970), (60, 6521179), (70, 5589582), (84, 4657985), (105, 3726388), (140, 2794791), (210, 1863194), (420, 931597)]