215107760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12391}}^1$

素因数の和:12442

約数の個数: 80

約数和(自身を含む): 590057472

約数和(自身を除く): 374949712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 12391, 17360, 24782, 49564, 61955, 86737, 99128, 123910, 173474, 198256, 247820, 346948, 384121, 433685, 495640, 693896, 768242, 867370, 991280, 1387792, 1536484, 1734740, 1920605, 2688847, 3072968, 3469480, 3841210, 5377694, 6145936, 6938960, 7682420, 10755388, 13444235, 15364840, 21510776, 26888470, 30729680, 43021552, 53776940, 107553880, 215107760]

約数ペア:

[(1, 215107760), (2, 107553880), (4, 53776940), (5, 43021552), (7, 30729680), (8, 26888470), (10, 21510776), (14, 15364840), (16, 13444235), (20, 10755388), (28, 7682420), (31, 6938960), (35, 6145936), (40, 5377694), (56, 3841210), (62, 3469480), (70, 3072968), (80, 2688847), (112, 1920605), (124, 1734740), (140, 1536484), (155, 1387792), (217, 991280), (248, 867370), (280, 768242), (310, 693896), (434, 495640), (496, 433685), (560, 384121), (620, 346948), (868, 247820), (1085, 198256), (1240, 173474), (1736, 123910), (2170, 99128), (2480, 86737), (3472, 61955), (4340, 49564), (8680, 24782), (12391, 17360)]