2660420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 6601728

約数和(自身を除く): 3941308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 613, 620, 868, 1085, 1226, 2170, 2452, 3065, 4291, 4340, 6130, 8582, 12260, 17164, 19003, 21455, 38006, 42910, 76012, 85820, 95015, 133021, 190030, 266042, 380060, 532084, 665105, 1330210, 2660420]

約数ペア:

[(1, 2660420), (2, 1330210), (4, 665105), (5, 532084), (7, 380060), (10, 266042), (14, 190030), (20, 133021), (28, 95015), (31, 85820), (35, 76012), (62, 42910), (70, 38006), (124, 21455), (140, 19003), (155, 17164), (217, 12260), (310, 8582), (434, 6130), (613, 4340), (620, 4291), (868, 3065), (1085, 2452), (1226, 2170)]