6640880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:306

約数の個数: 80

約数和(自身を含む): 17275680

約数和(自身を除く): 10634800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 257, 272, 304, 323, 340, 380, 514, 646, 680, 760, 1028, 1285, 1292, 1360, 1520, 1615, 2056, 2570, 2584, 3230, 4112, 4369, 4883, 5140, 5168, 6460, 8738, 9766, 10280, 12920, 17476, 19532, 20560, 21845, 24415, 25840, 34952, 39064, 43690, 48830, 69904, 78128, 83011, 87380, 97660, 166022, 174760, 195320, 332044, 349520, 390640, 415055, 664088, 830110, 1328176, 1660220, 3320440, 6640880]

約数ペア:

[(1, 6640880), (2, 3320440), (4, 1660220), (5, 1328176), (8, 830110), (10, 664088), (16, 415055), (17, 390640), (19, 349520), (20, 332044), (34, 195320), (38, 174760), (40, 166022), (68, 97660), (76, 87380), (80, 83011), (85, 78128), (95, 69904), (136, 48830), (152, 43690), (170, 39064), (190, 34952), (257, 25840), (272, 24415), (304, 21845), (323, 20560), (340, 19532), (380, 17476), (514, 12920), (646, 10280), (680, 9766), (760, 8738), (1028, 6460), (1285, 5168), (1292, 5140), (1360, 4883), (1520, 4369), (1615, 4112), (2056, 3230), (2570, 2584)]