721794780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{743}}^1$

素因数の和:1025

約数の個数: 192

約数和(自身を含む): 2579834880

約数和(自身を除く): 1858040100

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, 257, 270, 315, 378, 420, 514, 540, 630, 743, 756, 771, 945, 1028, 1260, 1285, 1486, 1542, 1799, 1890, 2229, 2313, 2570, 2972, 3084, 3598, 3715, 3780, 3855, 4458, 4626, 5140, 5201, 5397, 6687, 6939, 7196, 7430, 7710, 8916, 8995, 9252, 10402, 10794, 11145, 11565, 13374, 13878, 14860, 15420, 15603, 16191, 17990, 20061, 20804, 21588, 22290, 23130, 26005, 26748, 26985, 27756, 31206, 32382, 33435, 34695, 35980, 40122, 44580, 46260, 46809, 48573, 52010, 53970, 62412, 64764, 66870, 69390, 78015, 80244, 80955, 93618, 97146, 100305, 104020, 107940, 133740, 138780, 140427, 156030, 161910, 187236, 190951, 194292, 200610, 234045, 242865, 280854, 312060, 323820, 381902, 401220, 468090, 485730, 561708, 572853, 702135, 763804, 936180, 954755, 971460, 1145706, 1336657, 1404270, 1718559, 1909510, 2291412, 2673314, 2808540, 2864265, 3437118, 3819020, 4009971, 5155677, 5346628, 5728530, 6683285, 6874236, 8019942, 8592795, 10311354, 11457060, 12029913, 13366570, 16039884, 17185590, 20049855, 20622708, 24059826, 25778385, 26733140, 34371180, 36089739, 40099710, 48119652, 51556770, 60149565, 72179478, 80199420, 103113540, 120299130, 144358956, 180448695, 240598260, 360897390, 721794780]

約数ペア:

[(1, 721794780), (2, 360897390), (3, 240598260), (4, 180448695), (5, 144358956), (6, 120299130), (7, 103113540), (9, 80199420), (10, 72179478), (12, 60149565), (14, 51556770), (15, 48119652), (18, 40099710), (20, 36089739), (21, 34371180), (27, 26733140), (28, 25778385), (30, 24059826), (35, 20622708), (36, 20049855), (42, 17185590), (45, 16039884), (54, 13366570), (60, 12029913), (63, 11457060), (70, 10311354), (84, 8592795), (90, 8019942), (105, 6874236), (108, 6683285), (126, 5728530), (135, 5346628), (140, 5155677), (180, 4009971), (189, 3819020), (210, 3437118), (252, 2864265), (257, 2808540), (270, 2673314), (315, 2291412), (378, 1909510), (420, 1718559), (514, 1404270), (540, 1336657), (630, 1145706), (743, 971460), (756, 954755), (771, 936180), (945, 763804), (1028, 702135), (1260, 572853), (1285, 561708), (1486, 485730), (1542, 468090), (1799, 401220), (1890, 381902), (2229, 323820), (2313, 312060), (2570, 280854), (2972, 242865), (3084, 234045), (3598, 200610), (3715, 194292), (3780, 190951), (3855, 187236), (4458, 161910), (4626, 156030), (5140, 140427), (5201, 138780), (5397, 133740), (6687, 107940), (6939, 104020), (7196, 100305), (7430, 97146), (7710, 93618), (8916, 80955), (8995, 80244), (9252, 78015), (10402, 69390), (10794, 66870), (11145, 64764), (11565, 62412), (13374, 53970), (13878, 52010), (14860, 48573), (15420, 46809), (15603, 46260), (16191, 44580), (17990, 40122), (20061, 35980), (20804, 34695), (21588, 33435), (22290, 32382), (23130, 31206), (26005, 27756), (26748, 26985)]