12978820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 29393280

約数和(自身を除く): 16414460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 647, 1003, 1180, 1294, 2006, 2588, 3235, 4012, 5015, 6470, 10030, 10999, 12940, 20060, 21998, 38173, 43996, 54995, 76346, 109990, 152692, 190865, 219980, 381730, 648941, 763460, 1297882, 2595764, 3244705, 6489410, 12978820]

約数ペア:

[(1, 12978820), (2, 6489410), (4, 3244705), (5, 2595764), (10, 1297882), (17, 763460), (20, 648941), (34, 381730), (59, 219980), (68, 190865), (85, 152692), (118, 109990), (170, 76346), (236, 54995), (295, 43996), (340, 38173), (590, 21998), (647, 20060), (1003, 12940), (1180, 10999), (1294, 10030), (2006, 6470), (2588, 5015), (3235, 4012)]