81351900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:413

約数の個数: 216

約数和(自身を含む): 300154400

約数和(自身を除く): 218802500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 37, 42, 45, 50, 60, 63, 70, 74, 75, 84, 90, 100, 105, 111, 126, 140, 148, 150, 175, 180, 185, 210, 222, 225, 252, 259, 300, 315, 333, 349, 350, 370, 420, 444, 450, 518, 525, 555, 630, 666, 698, 700, 740, 777, 900, 925, 1036, 1047, 1050, 1110, 1260, 1295, 1332, 1396, 1554, 1575, 1665, 1745, 1850, 2094, 2100, 2220, 2331, 2443, 2590, 2775, 3108, 3141, 3150, 3330, 3490, 3700, 3885, 4188, 4662, 4886, 5180, 5235, 5550, 6282, 6300, 6475, 6660, 6980, 7329, 7770, 8325, 8725, 9324, 9772, 10470, 11100, 11655, 12215, 12564, 12913, 12950, 14658, 15540, 15705, 16650, 17450, 19425, 20940, 21987, 23310, 24430, 25826, 25900, 26175, 29316, 31410, 33300, 34900, 36645, 38739, 38850, 43974, 46620, 48860, 51652, 52350, 58275, 61075, 62820, 64565, 73290, 77478, 77700, 78525, 87948, 90391, 104700, 109935, 116217, 116550, 122150, 129130, 146580, 154956, 157050, 180782, 183225, 193695, 219870, 232434, 233100, 244300, 258260, 271173, 314100, 322825, 361564, 366450, 387390, 439740, 451955, 464868, 542346, 549675, 581085, 645650, 732900, 774780, 813519, 903910, 968475, 1084692, 1099350, 1162170, 1291300, 1355865, 1627038, 1807820, 1936950, 2198700, 2259775, 2324340, 2711730, 2905425, 3254076, 3873900, 4067595, 4519550, 5423460, 5810850, 6779325, 8135190, 9039100, 11621700, 13558650, 16270380, 20337975, 27117300, 40675950, 81351900]

約数ペア:

[(1, 81351900), (2, 40675950), (3, 27117300), (4, 20337975), (5, 16270380), (6, 13558650), (7, 11621700), (9, 9039100), (10, 8135190), (12, 6779325), (14, 5810850), (15, 5423460), (18, 4519550), (20, 4067595), (21, 3873900), (25, 3254076), (28, 2905425), (30, 2711730), (35, 2324340), (36, 2259775), (37, 2198700), (42, 1936950), (45, 1807820), (50, 1627038), (60, 1355865), (63, 1291300), (70, 1162170), (74, 1099350), (75, 1084692), (84, 968475), (90, 903910), (100, 813519), (105, 774780), (111, 732900), (126, 645650), (140, 581085), (148, 549675), (150, 542346), (175, 464868), (180, 451955), (185, 439740), (210, 387390), (222, 366450), (225, 361564), (252, 322825), (259, 314100), (300, 271173), (315, 258260), (333, 244300), (349, 233100), (350, 232434), (370, 219870), (420, 193695), (444, 183225), (450, 180782), (518, 157050), (525, 154956), (555, 146580), (630, 129130), (666, 122150), (698, 116550), (700, 116217), (740, 109935), (777, 104700), (900, 90391), (925, 87948), (1036, 78525), (1047, 77700), (1050, 77478), (1110, 73290), (1260, 64565), (1295, 62820), (1332, 61075), (1396, 58275), (1554, 52350), (1575, 51652), (1665, 48860), (1745, 46620), (1850, 43974), (2094, 38850), (2100, 38739), (2220, 36645), (2331, 34900), (2443, 33300), (2590, 31410), (2775, 29316), (3108, 26175), (3141, 25900), (3150, 25826), (3330, 24430), (3490, 23310), (3700, 21987), (3885, 20940), (4188, 19425), (4662, 17450), (4886, 16650), (5180, 15705), (5235, 15540), (5550, 14658), (6282, 12950), (6300, 12913), (6475, 12564), (6660, 12215), (6980, 11655), (7329, 11100), (7770, 10470), (8325, 9772), (8725, 9324)]