131857780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 311351040

約数和(自身を除く): 179493260

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 43, 58, 68, 85, 86, 116, 145, 170, 172, 215, 290, 311, 340, 430, 493, 580, 622, 731, 860, 986, 1244, 1247, 1462, 1555, 1972, 2465, 2494, 2924, 3110, 3655, 4930, 4988, 5287, 6220, 6235, 7310, 9019, 9860, 10574, 12470, 13373, 14620, 18038, 21148, 21199, 24940, 26435, 26746, 36076, 42398, 45095, 52870, 53492, 66865, 84796, 90190, 105740, 105995, 133730, 153323, 180380, 211990, 227341, 267460, 306646, 387817, 423980, 454682, 613292, 766615, 775634, 909364, 1136705, 1533230, 1551268, 1939085, 2273410, 3066460, 3878170, 4546820, 6592889, 7756340, 13185778, 26371556, 32964445, 65928890, 131857780]

約数ペア:

[(1, 131857780), (2, 65928890), (4, 32964445), (5, 26371556), (10, 13185778), (17, 7756340), (20, 6592889), (29, 4546820), (34, 3878170), (43, 3066460), (58, 2273410), (68, 1939085), (85, 1551268), (86, 1533230), (116, 1136705), (145, 909364), (170, 775634), (172, 766615), (215, 613292), (290, 454682), (311, 423980), (340, 387817), (430, 306646), (493, 267460), (580, 227341), (622, 211990), (731, 180380), (860, 153323), (986, 133730), (1244, 105995), (1247, 105740), (1462, 90190), (1555, 84796), (1972, 66865), (2465, 53492), (2494, 52870), (2924, 45095), (3110, 42398), (3655, 36076), (4930, 26746), (4988, 26435), (5287, 24940), (6220, 21199), (6235, 21148), (7310, 18038), (9019, 14620), (9860, 13373), (10574, 12470)]