65611980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 216

約数和(自身を含む): 238270032

約数和(自身を除く): 172658052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 49, 60, 63, 70, 84, 86, 90, 98, 105, 126, 129, 140, 147, 172, 173, 180, 196, 210, 215, 245, 252, 258, 294, 301, 315, 346, 387, 420, 430, 441, 490, 516, 519, 588, 602, 630, 645, 692, 735, 774, 860, 865, 882, 903, 980, 1038, 1204, 1211, 1260, 1290, 1470, 1505, 1548, 1557, 1730, 1764, 1806, 1935, 2076, 2107, 2205, 2422, 2580, 2595, 2709, 2940, 3010, 3114, 3460, 3612, 3633, 3870, 4214, 4410, 4515, 4844, 5190, 5418, 6020, 6055, 6228, 6321, 7266, 7439, 7740, 7785, 8428, 8477, 8820, 9030, 10380, 10535, 10836, 10899, 12110, 12642, 13545, 14532, 14878, 15570, 16954, 18060, 18165, 18963, 21070, 21798, 22317, 24220, 25284, 25431, 27090, 29756, 31140, 31605, 33908, 36330, 37195, 37926, 42140, 42385, 43596, 44634, 50862, 52073, 54180, 54495, 63210, 66951, 72660, 74390, 75852, 76293, 84770, 89268, 94815, 101724, 104146, 108990, 111585, 126420, 127155, 133902, 148780, 152586, 156219, 169540, 189630, 208292, 217980, 223170, 254310, 260365, 267804, 305172, 312438, 334755, 364511, 379260, 381465, 446340, 468657, 508620, 520730, 624876, 669510, 729022, 762930, 781095, 937314, 1041460, 1093533, 1339020, 1458044, 1525860, 1562190, 1822555, 1874628, 2187066, 2343285, 3124380, 3280599, 3645110, 4374132, 4686570, 5467665, 6561198, 7290220, 9373140, 10935330, 13122396, 16402995, 21870660, 32805990, 65611980]

約数ペア:

[(1, 65611980), (2, 32805990), (3, 21870660), (4, 16402995), (5, 13122396), (6, 10935330), (7, 9373140), (9, 7290220), (10, 6561198), (12, 5467665), (14, 4686570), (15, 4374132), (18, 3645110), (20, 3280599), (21, 3124380), (28, 2343285), (30, 2187066), (35, 1874628), (36, 1822555), (42, 1562190), (43, 1525860), (45, 1458044), (49, 1339020), (60, 1093533), (63, 1041460), (70, 937314), (84, 781095), (86, 762930), (90, 729022), (98, 669510), (105, 624876), (126, 520730), (129, 508620), (140, 468657), (147, 446340), (172, 381465), (173, 379260), (180, 364511), (196, 334755), (210, 312438), (215, 305172), (245, 267804), (252, 260365), (258, 254310), (294, 223170), (301, 217980), (315, 208292), (346, 189630), (387, 169540), (420, 156219), (430, 152586), (441, 148780), (490, 133902), (516, 127155), (519, 126420), (588, 111585), (602, 108990), (630, 104146), (645, 101724), (692, 94815), (735, 89268), (774, 84770), (860, 76293), (865, 75852), (882, 74390), (903, 72660), (980, 66951), (1038, 63210), (1204, 54495), (1211, 54180), (1260, 52073), (1290, 50862), (1470, 44634), (1505, 43596), (1548, 42385), (1557, 42140), (1730, 37926), (1764, 37195), (1806, 36330), (1935, 33908), (2076, 31605), (2107, 31140), (2205, 29756), (2422, 27090), (2580, 25431), (2595, 25284), (2709, 24220), (2940, 22317), (3010, 21798), (3114, 21070), (3460, 18963), (3612, 18165), (3633, 18060), (3870, 16954), (4214, 15570), (4410, 14878), (4515, 14532), (4844, 13545), (5190, 12642), (5418, 12110), (6020, 10899), (6055, 10836), (6228, 10535), (6321, 10380), (7266, 9030), (7439, 8820), (7740, 8477), (7785, 8428)]