81923940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21673}}^1$

素因数の和:21698

約数の個数: 96

約数和(自身を含む): 291298560

約数和(自身を除く): 209374620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21673, 43346, 65019, 86692, 108365, 130038, 151711, 195057, 216730, 260076, 303422, 325095, 390114, 433460, 455133, 585171, 606844, 650190, 758555, 780228, 910266, 975285, 1170342, 1300380, 1365399, 1517110, 1820532, 1950570, 2275665, 2340684, 2730798, 2925855, 3034220, 3901140, 4096197, 4551330, 5461596, 5851710, 6826995, 8192394, 9102660, 11703420, 13653990, 16384788, 20480985, 27307980, 40961970, 81923940]

約数ペア:

[(1, 81923940), (2, 40961970), (3, 27307980), (4, 20480985), (5, 16384788), (6, 13653990), (7, 11703420), (9, 9102660), (10, 8192394), (12, 6826995), (14, 5851710), (15, 5461596), (18, 4551330), (20, 4096197), (21, 3901140), (27, 3034220), (28, 2925855), (30, 2730798), (35, 2340684), (36, 2275665), (42, 1950570), (45, 1820532), (54, 1517110), (60, 1365399), (63, 1300380), (70, 1170342), (84, 975285), (90, 910266), (105, 780228), (108, 758555), (126, 650190), (135, 606844), (140, 585171), (180, 455133), (189, 433460), (210, 390114), (252, 325095), (270, 303422), (315, 260076), (378, 216730), (420, 195057), (540, 151711), (630, 130038), (756, 108365), (945, 86692), (1260, 65019), (1890, 43346), (3780, 21673)]