221703920

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{37963}}^1$

素因数の和:38049

約数の個数: 40

約数和(自身を含む): 522536496

約数和(自身を除く): 300832576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 37963, 75926, 151852, 189815, 303704, 379630, 607408, 759260, 1518520, 2771299, 3037040, 5542598, 11085196, 13856495, 22170392, 27712990, 44340784, 55425980, 110851960, 221703920]

約数ペア:

[(1, 221703920), (2, 110851960), (4, 55425980), (5, 44340784), (8, 27712990), (10, 22170392), (16, 13856495), (20, 11085196), (40, 5542598), (73, 3037040), (80, 2771299), (146, 1518520), (292, 759260), (365, 607408), (584, 379630), (730, 303704), (1168, 189815), (1460, 151852), (2920, 75926), (5840, 37963)]