55780760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2729}}^1$

素因数の和:2820

約数の個数: 64

約数和(自身を含む): 145454400

約数和(自身を除く): 89673640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2729, 2920, 4088, 5110, 5458, 10220, 10916, 13645, 19103, 20440, 21832, 27290, 38206, 54580, 76412, 95515, 109160, 152824, 191030, 199217, 382060, 398434, 764120, 796868, 996085, 1394519, 1593736, 1992170, 2789038, 3984340, 5578076, 6972595, 7968680, 11156152, 13945190, 27890380, 55780760]

約数ペア:

[(1, 55780760), (2, 27890380), (4, 13945190), (5, 11156152), (7, 7968680), (8, 6972595), (10, 5578076), (14, 3984340), (20, 2789038), (28, 1992170), (35, 1593736), (40, 1394519), (56, 996085), (70, 796868), (73, 764120), (140, 398434), (146, 382060), (280, 199217), (292, 191030), (365, 152824), (511, 109160), (584, 95515), (730, 76412), (1022, 54580), (1460, 38206), (2044, 27290), (2555, 21832), (2729, 20440), (2920, 19103), (4088, 13645), (5110, 10916), (5458, 10220)]