2631980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 6096384

約数和(自身を除く): 3464404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 191, 212, 260, 265, 382, 530, 689, 764, 955, 1060, 1378, 1910, 2483, 2756, 3445, 3820, 4966, 6890, 9932, 10123, 12415, 13780, 20246, 24830, 40492, 49660, 50615, 101230, 131599, 202460, 263198, 526396, 657995, 1315990, 2631980]

約数ペア:

[(1, 2631980), (2, 1315990), (4, 657995), (5, 526396), (10, 263198), (13, 202460), (20, 131599), (26, 101230), (52, 50615), (53, 49660), (65, 40492), (106, 24830), (130, 20246), (191, 13780), (212, 12415), (260, 10123), (265, 9932), (382, 6890), (530, 4966), (689, 3820), (764, 3445), (955, 2756), (1060, 2483), (1378, 1910)]