2981940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3848

約数の個数: 48

約数和(自身を含む): 8994048

約数和(自身を除く): 6012108

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, 3823, 7646, 11469, 15292, 19115, 22938, 38230, 45876, 49699, 57345, 76460, 99398, 114690, 149097, 198796, 229380, 248495, 298194, 496990, 596388, 745485, 993980, 1490970, 2981940]

約数ペア:

[(1, 2981940), (2, 1490970), (3, 993980), (4, 745485), (5, 596388), (6, 496990), (10, 298194), (12, 248495), (13, 229380), (15, 198796), (20, 149097), (26, 114690), (30, 99398), (39, 76460), (52, 57345), (60, 49699), (65, 45876), (78, 38230), (130, 22938), (156, 19115), (195, 15292), (260, 11469), (390, 7646), (780, 3823)]