397361720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{45779}}^1$

素因数の和:45828

約数の個数: 64

約数和(自身を含む): 1054771200

約数和(自身を除く): 657409480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 45779, 91558, 183116, 228895, 320453, 366232, 457790, 640906, 915580, 1281812, 1419149, 1602265, 1831160, 2563624, 2838298, 3204530, 5676596, 6409060, 7095745, 9934043, 11353192, 12818120, 14191490, 19868086, 28382980, 39736172, 49670215, 56765960, 79472344, 99340430, 198680860, 397361720]

約数ペア:

[(1, 397361720), (2, 198680860), (4, 99340430), (5, 79472344), (7, 56765960), (8, 49670215), (10, 39736172), (14, 28382980), (20, 19868086), (28, 14191490), (31, 12818120), (35, 11353192), (40, 9934043), (56, 7095745), (62, 6409060), (70, 5676596), (124, 3204530), (140, 2838298), (155, 2563624), (217, 1831160), (248, 1602265), (280, 1419149), (310, 1281812), (434, 915580), (620, 640906), (868, 457790), (1085, 366232), (1240, 320453), (1736, 228895), (2170, 183116), (4340, 91558), (8680, 45779)]