16990820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 48263040

約数和(自身を除く): 31272220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 59, 68, 70, 77, 85, 110, 118, 119, 121, 140, 154, 170, 187, 220, 236, 238, 242, 295, 308, 340, 374, 385, 413, 476, 484, 590, 595, 605, 649, 748, 770, 826, 847, 935, 1003, 1180, 1190, 1210, 1298, 1309, 1540, 1652, 1694, 1870, 2006, 2057, 2065, 2380, 2420, 2596, 2618, 3245, 3388, 3740, 4012, 4114, 4130, 4235, 4543, 5015, 5236, 6490, 6545, 7021, 7139, 8228, 8260, 8470, 9086, 10030, 10285, 11033, 12980, 13090, 14042, 14278, 14399, 16940, 18172, 20060, 20570, 22066, 22715, 26180, 28084, 28556, 28798, 35105, 35695, 41140, 44132, 45430, 49973, 55165, 57596, 70210, 71390, 71995, 77231, 90860, 99946, 110330, 121363, 140420, 142780, 143990, 154462, 199892, 220660, 242726, 249865, 287980, 308924, 386155, 485452, 499730, 606815, 772310, 849541, 999460, 1213630, 1544620, 1699082, 2427260, 3398164, 4247705, 8495410, 16990820]

約数ペア:

[(1, 16990820), (2, 8495410), (4, 4247705), (5, 3398164), (7, 2427260), (10, 1699082), (11, 1544620), (14, 1213630), (17, 999460), (20, 849541), (22, 772310), (28, 606815), (34, 499730), (35, 485452), (44, 386155), (55, 308924), (59, 287980), (68, 249865), (70, 242726), (77, 220660), (85, 199892), (110, 154462), (118, 143990), (119, 142780), (121, 140420), (140, 121363), (154, 110330), (170, 99946), (187, 90860), (220, 77231), (236, 71995), (238, 71390), (242, 70210), (295, 57596), (308, 55165), (340, 49973), (374, 45430), (385, 44132), (413, 41140), (476, 35695), (484, 35105), (590, 28798), (595, 28556), (605, 28084), (649, 26180), (748, 22715), (770, 22066), (826, 20570), (847, 20060), (935, 18172), (1003, 16940), (1180, 14399), (1190, 14278), (1210, 14042), (1298, 13090), (1309, 12980), (1540, 11033), (1652, 10285), (1694, 10030), (1870, 9086), (2006, 8470), (2057, 8260), (2065, 8228), (2380, 7139), (2420, 7021), (2596, 6545), (2618, 6490), (3245, 5236), (3388, 5015), (3740, 4543), (4012, 4235), (4114, 4130)]