20199368680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1\times {\mathrm{12323}}^1$

素因数の和:13330

約数の個数: 64

約数和(自身を含む): 46558100160

約数和(自身を除く): 26358731480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 953, 1720, 1906, 3812, 4765, 7624, 9530, 12323, 19060, 24646, 38120, 40979, 49292, 61615, 81958, 98584, 123230, 163916, 204895, 246460, 327832, 409790, 492920, 529889, 819580, 1059778, 1639160, 2119556, 2649445, 4239112, 5298890, 10597780, 11743819, 21195560, 23487638, 46975276, 58719095, 93950552, 117438190, 234876380, 469752760, 504984217, 1009968434, 2019936868, 2524921085, 4039873736, 5049842170, 10099684340, 20199368680]

約数ペア:

[(1, 20199368680), (2, 10099684340), (4, 5049842170), (5, 4039873736), (8, 2524921085), (10, 2019936868), (20, 1009968434), (40, 504984217), (43, 469752760), (86, 234876380), (172, 117438190), (215, 93950552), (344, 58719095), (430, 46975276), (860, 23487638), (953, 21195560), (1720, 11743819), (1906, 10597780), (3812, 5298890), (4765, 4239112), (7624, 2649445), (9530, 2119556), (12323, 1639160), (19060, 1059778), (24646, 819580), (38120, 529889), (40979, 492920), (49292, 409790), (61615, 327832), (81958, 246460), (98584, 204895), (123230, 163916)]