318994340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{2371}}^1$

素因数の和:2449

約数の個数: 72

約数和(自身を含む): 791413056

約数和(自身を除く): 472418716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 961, 1085, 1922, 2170, 2371, 3844, 4340, 4742, 4805, 6727, 9484, 9610, 11855, 13454, 16597, 19220, 23710, 26908, 33194, 33635, 47420, 66388, 67270, 73501, 82985, 134540, 147002, 165970, 294004, 331940, 367505, 514507, 735010, 1029014, 1470020, 2058028, 2278531, 2572535, 4557062, 5145070, 9114124, 10290140, 11392655, 15949717, 22785310, 31899434, 45570620, 63798868, 79748585, 159497170, 318994340]

約数ペア:

[(1, 318994340), (2, 159497170), (4, 79748585), (5, 63798868), (7, 45570620), (10, 31899434), (14, 22785310), (20, 15949717), (28, 11392655), (31, 10290140), (35, 9114124), (62, 5145070), (70, 4557062), (124, 2572535), (140, 2278531), (155, 2058028), (217, 1470020), (310, 1029014), (434, 735010), (620, 514507), (868, 367505), (961, 331940), (1085, 294004), (1922, 165970), (2170, 147002), (2371, 134540), (3844, 82985), (4340, 73501), (4742, 67270), (4805, 66388), (6727, 47420), (9484, 33635), (9610, 33194), (11855, 26908), (13454, 23710), (16597, 19220)]