421980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 1274784

約数和(自身を除く): 852804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 541, 780, 1082, 1623, 2164, 2705, 3246, 5410, 6492, 7033, 8115, 10820, 14066, 16230, 21099, 28132, 32460, 35165, 42198, 70330, 84396, 105495, 140660, 210990, 421980]

約数ペア:

[(1, 421980), (2, 210990), (3, 140660), (4, 105495), (5, 84396), (6, 70330), (10, 42198), (12, 35165), (13, 32460), (15, 28132), (20, 21099), (26, 16230), (30, 14066), (39, 10820), (52, 8115), (60, 7033), (65, 6492), (78, 5410), (130, 3246), (156, 2705), (195, 2164), (260, 1623), (390, 1082), (541, 780)]