205953615

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 450717696

約数和(自身を除く): 244764081

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 31, 35, 45, 49, 63, 69, 93, 105, 115, 131, 147, 155, 161, 207, 217, 245, 279, 315, 345, 393, 441, 465, 483, 651, 655, 713, 735, 805, 917, 1035, 1085, 1127, 1179, 1395, 1449, 1519, 1953, 1965, 2139, 2205, 2415, 2751, 3013, 3255, 3381, 3565, 4061, 4557, 4585, 4991, 5635, 5895, 6417, 6419, 7245, 7595, 8253, 9039, 9765, 10143, 10695, 12183, 13671, 13755, 14973, 15065, 16905, 19257, 20305, 21091, 22785, 24955, 27117, 28427, 32085, 32095, 34937, 36549, 41265, 44919, 45195, 50715, 57771, 60915, 63273, 68355, 74865, 85281, 93403, 96285, 104811, 105455, 135585, 142135, 147637, 174685, 182745, 189819, 198989, 224595, 255843, 280209, 288855, 314433, 316365, 426405, 442911, 467015, 524055, 596967, 653821, 738185, 840627, 949095, 994945, 1279215, 1328733, 1401045, 1572165, 1790901, 1961463, 2214555, 2984835, 3269105, 4203135, 4576747, 5884389, 6643665, 8954505, 9807315, 13730241, 22883735, 29421945, 41190723, 68651205, 205953615]

約数ペア:

[(1, 205953615), (3, 68651205), (5, 41190723), (7, 29421945), (9, 22883735), (15, 13730241), (21, 9807315), (23, 8954505), (31, 6643665), (35, 5884389), (45, 4576747), (49, 4203135), (63, 3269105), (69, 2984835), (93, 2214555), (105, 1961463), (115, 1790901), (131, 1572165), (147, 1401045), (155, 1328733), (161, 1279215), (207, 994945), (217, 949095), (245, 840627), (279, 738185), (315, 653821), (345, 596967), (393, 524055), (441, 467015), (465, 442911), (483, 426405), (651, 316365), (655, 314433), (713, 288855), (735, 280209), (805, 255843), (917, 224595), (1035, 198989), (1085, 189819), (1127, 182745), (1179, 174685), (1395, 147637), (1449, 142135), (1519, 135585), (1953, 105455), (1965, 104811), (2139, 96285), (2205, 93403), (2415, 85281), (2751, 74865), (3013, 68355), (3255, 63273), (3381, 60915), (3565, 57771), (4061, 50715), (4557, 45195), (4585, 44919), (4991, 41265), (5635, 36549), (5895, 34937), (6417, 32095), (6419, 32085), (7245, 28427), (7595, 27117), (8253, 24955), (9039, 22785), (9765, 21091), (10143, 20305), (10695, 19257), (12183, 16905), (13671, 15065), (13755, 14973)]