20195933440

素因数分解:

$2^8\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{11593}}^1$

素因数の和:12975

約数の個数: 72

約数和(自身を含む): 48415291848

約数和(自身を除く): 28219358408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1361, 2722, 5444, 6805, 10888, 11593, 13610, 21776, 23186, 27220, 43552, 46372, 54440, 57965, 87104, 92744, 108880, 115930, 174208, 185488, 217760, 231860, 348416, 370976, 435520, 463720, 741952, 871040, 927440, 1483904, 1742080, 1854880, 2967808, 3709760, 7419520, 14839040, 15778073, 31556146, 63112292, 78890365, 126224584, 157780730, 252449168, 315561460, 504898336, 631122920, 1009796672, 1262245840, 2019593344, 2524491680, 4039186688, 5048983360, 10097966720, 20195933440]

約数ペア:

[(1, 20195933440), (2, 10097966720), (4, 5048983360), (5, 4039186688), (8, 2524491680), (10, 2019593344), (16, 1262245840), (20, 1009796672), (32, 631122920), (40, 504898336), (64, 315561460), (80, 252449168), (128, 157780730), (160, 126224584), (256, 78890365), (320, 63112292), (640, 31556146), (1280, 15778073), (1361, 14839040), (2722, 7419520), (5444, 3709760), (6805, 2967808), (10888, 1854880), (11593, 1742080), (13610, 1483904), (21776, 927440), (23186, 871040), (27220, 741952), (43552, 463720), (46372, 435520), (54440, 370976), (57965, 348416), (87104, 231860), (92744, 217760), (108880, 185488), (115930, 174208)]