209218480

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{7901}}^1$

素因数の和:8245

約数の個数: 40

約数和(自身を含む): 487964304

約数和(自身を除く): 278745824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2648, 3310, 5296, 6620, 7901, 13240, 15802, 26480, 31604, 39505, 63208, 79010, 126416, 158020, 316040, 632080, 2615231, 5230462, 10460924, 13076155, 20921848, 26152310, 41843696, 52304620, 104609240, 209218480]

約数ペア:

[(1, 209218480), (2, 104609240), (4, 52304620), (5, 41843696), (8, 26152310), (10, 20921848), (16, 13076155), (20, 10460924), (40, 5230462), (80, 2615231), (331, 632080), (662, 316040), (1324, 158020), (1655, 126416), (2648, 79010), (3310, 63208), (5296, 39505), (6620, 31604), (7901, 26480), (13240, 15802)]