400210005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 792529920

約数和(自身を除く): 392319915

約数列:

[1, 3, 5, 13, 15, 17, 23, 29, 39, 51, 65, 69, 85, 87, 115, 145, 181, 195, 221, 255, 299, 345, 377, 391, 435, 493, 543, 663, 667, 897, 905, 1105, 1131, 1173, 1479, 1495, 1885, 1955, 2001, 2353, 2465, 2715, 3077, 3315, 3335, 4163, 4485, 5083, 5249, 5655, 5865, 6409, 7059, 7395, 8671, 9231, 10005, 11339, 11765, 12489, 15249, 15385, 15747, 19227, 20815, 25415, 26013, 26245, 32045, 34017, 35295, 40001, 43355, 46155, 54119, 56695, 62445, 68237, 70771, 76245, 78735, 89233, 96135, 120003, 120727, 130065, 147407, 162357, 170085, 200005, 204711, 212313, 267699, 270595, 341185, 353855, 362181, 442221, 446165, 600015, 603635, 737035, 811785, 920023, 1023555, 1061565, 1160029, 1338495, 1569451, 1810905, 2052359, 2211105, 2760069, 3480087, 4600115, 4708353, 5800145, 6157077, 7847255, 10261795, 13800345, 17400435, 23541765, 26680667, 30785385, 80042001, 133403335, 400210005]

約数ペア:

[(1, 400210005), (3, 133403335), (5, 80042001), (13, 30785385), (15, 26680667), (17, 23541765), (23, 17400435), (29, 13800345), (39, 10261795), (51, 7847255), (65, 6157077), (69, 5800145), (85, 4708353), (87, 4600115), (115, 3480087), (145, 2760069), (181, 2211105), (195, 2052359), (221, 1810905), (255, 1569451), (299, 1338495), (345, 1160029), (377, 1061565), (391, 1023555), (435, 920023), (493, 811785), (543, 737035), (663, 603635), (667, 600015), (897, 446165), (905, 442221), (1105, 362181), (1131, 353855), (1173, 341185), (1479, 270595), (1495, 267699), (1885, 212313), (1955, 204711), (2001, 200005), (2353, 170085), (2465, 162357), (2715, 147407), (3077, 130065), (3315, 120727), (3335, 120003), (4163, 96135), (4485, 89233), (5083, 78735), (5249, 76245), (5655, 70771), (5865, 68237), (6409, 62445), (7059, 56695), (7395, 54119), (8671, 46155), (9231, 43355), (10005, 40001), (11339, 35295), (11765, 34017), (12489, 32045), (15249, 26245), (15385, 26013), (15747, 25415), (19227, 20815)]