77581980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 273262080

約数和(自身を除く): 195680100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 67, 70, 84, 90, 105, 126, 134, 140, 180, 201, 210, 252, 268, 315, 335, 402, 420, 469, 603, 630, 670, 804, 919, 938, 1005, 1206, 1260, 1340, 1407, 1838, 1876, 2010, 2345, 2412, 2757, 2814, 3015, 3676, 4020, 4221, 4595, 4690, 5514, 5628, 6030, 6433, 7035, 8271, 8442, 9190, 9380, 11028, 12060, 12866, 13785, 14070, 16542, 16884, 18380, 19299, 21105, 25732, 27570, 28140, 32165, 33084, 38598, 41355, 42210, 55140, 57897, 61573, 64330, 77196, 82710, 84420, 96495, 115794, 123146, 128660, 165420, 184719, 192990, 231588, 246292, 289485, 307865, 369438, 385980, 431011, 554157, 578970, 615730, 738876, 862022, 923595, 1108314, 1157940, 1231460, 1293033, 1724044, 1847190, 2155055, 2216628, 2586066, 2770785, 3694380, 3879099, 4310110, 5172132, 5541570, 6465165, 7758198, 8620220, 11083140, 12930330, 15516396, 19395495, 25860660, 38790990, 77581980]

約数ペア:

[(1, 77581980), (2, 38790990), (3, 25860660), (4, 19395495), (5, 15516396), (6, 12930330), (7, 11083140), (9, 8620220), (10, 7758198), (12, 6465165), (14, 5541570), (15, 5172132), (18, 4310110), (20, 3879099), (21, 3694380), (28, 2770785), (30, 2586066), (35, 2216628), (36, 2155055), (42, 1847190), (45, 1724044), (60, 1293033), (63, 1231460), (67, 1157940), (70, 1108314), (84, 923595), (90, 862022), (105, 738876), (126, 615730), (134, 578970), (140, 554157), (180, 431011), (201, 385980), (210, 369438), (252, 307865), (268, 289485), (315, 246292), (335, 231588), (402, 192990), (420, 184719), (469, 165420), (603, 128660), (630, 123146), (670, 115794), (804, 96495), (919, 84420), (938, 82710), (1005, 77196), (1206, 64330), (1260, 61573), (1340, 57897), (1407, 55140), (1838, 42210), (1876, 41355), (2010, 38598), (2345, 33084), (2412, 32165), (2757, 28140), (2814, 27570), (3015, 25732), (3676, 21105), (4020, 19299), (4221, 18380), (4595, 16884), (4690, 16542), (5514, 14070), (5628, 13785), (6030, 12866), (6433, 12060), (7035, 11028), (8271, 9380), (8442, 9190)]