30905940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39623}}^1$

素因数の和:39648

約数の個数: 48

約数和(自身を含む): 93195648

約数和(自身を除く): 62289708

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, 780, 39623, 79246, 118869, 158492, 198115, 237738, 396230, 475476, 515099, 594345, 792460, 1030198, 1188690, 1545297, 2060396, 2377380, 2575495, 3090594, 5150990, 6181188, 7726485, 10301980, 15452970, 30905940]

約数ペア:

[(1, 30905940), (2, 15452970), (3, 10301980), (4, 7726485), (5, 6181188), (6, 5150990), (10, 3090594), (12, 2575495), (13, 2377380), (15, 2060396), (20, 1545297), (26, 1188690), (30, 1030198), (39, 792460), (52, 594345), (60, 515099), (65, 475476), (78, 396230), (130, 237738), (156, 198115), (195, 158492), (260, 118869), (390, 79246), (780, 39623)]