201771405

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 96

約数和(自身を含む): 409264128

約数和(自身を除く): 207492723

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 81, 93, 99, 135, 155, 165, 243, 279, 297, 341, 405, 465, 487, 495, 837, 891, 1023, 1215, 1395, 1461, 1485, 1705, 2435, 2511, 2673, 3069, 4185, 4383, 4455, 5115, 5357, 7305, 7533, 9207, 12555, 13149, 13365, 15097, 15345, 16071, 21915, 26785, 27621, 37665, 39447, 45291, 46035, 48213, 65745, 75485, 80355, 82863, 118341, 135873, 138105, 144639, 166067, 197235, 226455, 241065, 407619, 414315, 433917, 498201, 591705, 679365, 723195, 830335, 1222857, 1301751, 1494603, 2038095, 2169585, 2491005, 3668571, 4483809, 6114285, 6508755, 7473015, 13451427, 18342855, 22419045, 40354281, 67257135, 201771405]

約数ペア:

[(1, 201771405), (3, 67257135), (5, 40354281), (9, 22419045), (11, 18342855), (15, 13451427), (27, 7473015), (31, 6508755), (33, 6114285), (45, 4483809), (55, 3668571), (81, 2491005), (93, 2169585), (99, 2038095), (135, 1494603), (155, 1301751), (165, 1222857), (243, 830335), (279, 723195), (297, 679365), (341, 591705), (405, 498201), (465, 433917), (487, 414315), (495, 407619), (837, 241065), (891, 226455), (1023, 197235), (1215, 166067), (1395, 144639), (1461, 138105), (1485, 135873), (1705, 118341), (2435, 82863), (2511, 80355), (2673, 75485), (3069, 65745), (4185, 48213), (4383, 46035), (4455, 45291), (5115, 39447), (5357, 37665), (7305, 27621), (7533, 26785), (9207, 21915), (12555, 16071), (13149, 15345), (13365, 15097)]