821421720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4591}}^1$

素因数の和:4686

約数の個数: 192

約数和(自身を含む): 3094640640

約数和(自身を除く): 2273218920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 71, 72, 84, 90, 105, 120, 126, 140, 142, 168, 180, 210, 213, 252, 280, 284, 315, 355, 360, 420, 426, 497, 504, 568, 630, 639, 710, 840, 852, 994, 1065, 1260, 1278, 1420, 1491, 1704, 1988, 2130, 2485, 2520, 2556, 2840, 2982, 3195, 3976, 4260, 4473, 4591, 4970, 5112, 5964, 6390, 7455, 8520, 8946, 9182, 9940, 11928, 12780, 13773, 14910, 17892, 18364, 19880, 22365, 22955, 25560, 27546, 29820, 32137, 35784, 36728, 41319, 44730, 45910, 55092, 59640, 64274, 68865, 82638, 89460, 91820, 96411, 110184, 128548, 137730, 160685, 165276, 178920, 183640, 192822, 206595, 257096, 275460, 289233, 321370, 325961, 330552, 385644, 413190, 482055, 550920, 578466, 642740, 651922, 771288, 826380, 964110, 977883, 1156932, 1285480, 1303844, 1446165, 1629805, 1652760, 1928220, 1955766, 2281727, 2313864, 2607688, 2892330, 2933649, 3259610, 3856440, 3911532, 4563454, 4889415, 5784660, 5867298, 6519220, 6845181, 7823064, 9126908, 9778830, 11408635, 11569320, 11734596, 13038440, 13690362, 14668245, 18253816, 19557660, 20535543, 22817270, 23469192, 27380724, 29336490, 34225905, 39115320, 41071086, 45634540, 54761448, 58672980, 68451810, 82142172, 91269080, 102677715, 117345960, 136903620, 164284344, 205355430, 273807240, 410710860, 821421720]

約数ペア:

[(1, 821421720), (2, 410710860), (3, 273807240), (4, 205355430), (5, 164284344), (6, 136903620), (7, 117345960), (8, 102677715), (9, 91269080), (10, 82142172), (12, 68451810), (14, 58672980), (15, 54761448), (18, 45634540), (20, 41071086), (21, 39115320), (24, 34225905), (28, 29336490), (30, 27380724), (35, 23469192), (36, 22817270), (40, 20535543), (42, 19557660), (45, 18253816), (56, 14668245), (60, 13690362), (63, 13038440), (70, 11734596), (71, 11569320), (72, 11408635), (84, 9778830), (90, 9126908), (105, 7823064), (120, 6845181), (126, 6519220), (140, 5867298), (142, 5784660), (168, 4889415), (180, 4563454), (210, 3911532), (213, 3856440), (252, 3259610), (280, 2933649), (284, 2892330), (315, 2607688), (355, 2313864), (360, 2281727), (420, 1955766), (426, 1928220), (497, 1652760), (504, 1629805), (568, 1446165), (630, 1303844), (639, 1285480), (710, 1156932), (840, 977883), (852, 964110), (994, 826380), (1065, 771288), (1260, 651922), (1278, 642740), (1420, 578466), (1491, 550920), (1704, 482055), (1988, 413190), (2130, 385644), (2485, 330552), (2520, 325961), (2556, 321370), (2840, 289233), (2982, 275460), (3195, 257096), (3976, 206595), (4260, 192822), (4473, 183640), (4591, 178920), (4970, 165276), (5112, 160685), (5964, 137730), (6390, 128548), (7455, 110184), (8520, 96411), (8946, 91820), (9182, 89460), (9940, 82638), (11928, 68865), (12780, 64274), (13773, 59640), (14910, 55092), (17892, 45910), (18364, 44730), (19880, 41319), (22365, 36728), (22955, 35784), (25560, 32137), (27546, 29820)]