397563149980

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2957}}^1\times {\mathrm{15313}}^1$

素因数の和:18718

約数の個数: 48

約数和(自身を含む): 837122045760

約数和(自身を除く): 439558895780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2957, 4390, 5914, 8780, 11828, 14785, 15313, 29570, 30626, 59140, 61252, 76565, 153130, 306260, 1298123, 2596246, 5192492, 6490615, 6722407, 12981230, 13444814, 25962460, 26889628, 33612035, 45280541, 67224070, 90561082, 134448140, 181122164, 226402705, 452805410, 905610820, 19878157499, 39756314998, 79512629996, 99390787495, 198781574990, 397563149980]

約数ペア:

[(1, 397563149980), (2, 198781574990), (4, 99390787495), (5, 79512629996), (10, 39756314998), (20, 19878157499), (439, 905610820), (878, 452805410), (1756, 226402705), (2195, 181122164), (2957, 134448140), (4390, 90561082), (5914, 67224070), (8780, 45280541), (11828, 33612035), (14785, 26889628), (15313, 25962460), (29570, 13444814), (30626, 12981230), (59140, 6722407), (61252, 6490615), (76565, 5192492), (153130, 2596246), (306260, 1298123)]