388599907900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1\times {\mathrm{1291}}^1$

素因数の和:2516

約数の個数: 144

約数和(自身を含む): 881733565440

約数和(自身を除く): 493133657540

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 89, 100, 124, 155, 178, 310, 356, 445, 620, 775, 890, 1091, 1291, 1550, 1780, 2182, 2225, 2582, 2759, 3100, 4364, 4450, 5164, 5455, 5518, 6455, 8900, 10910, 11036, 12910, 13795, 21820, 25820, 27275, 27590, 32275, 33821, 40021, 54550, 55180, 64550, 67642, 68975, 80042, 97099, 109100, 114899, 129100, 135284, 137950, 160084, 169105, 194198, 200105, 229798, 275900, 338210, 388396, 400210, 459596, 485495, 574495, 676420, 800420, 845525, 970990, 1000525, 1148990, 1408481, 1691050, 1941980, 2001050, 2297980, 2427475, 2816962, 2872475, 3010069, 3382100, 3561869, 4002100, 4854950, 5633924, 5744950, 6020138, 7042405, 7123738, 9709900, 11489900, 12040276, 14084810, 14247476, 15050345, 17809345, 28169620, 30100690, 35212025, 35618690, 43662911, 60201380, 70424050, 71237380, 75251725, 87325822, 89046725, 125354809, 140848100, 150503450, 174651644, 178093450, 218314555, 250709618, 301006900, 356186900, 436629110, 501419236, 626774045, 873258220, 1091572775, 1253548090, 2183145550, 2507096180, 3133870225, 3885999079, 4366291100, 6267740450, 7771998158, 12535480900, 15543996316, 19429995395, 38859990790, 77719981580, 97149976975, 194299953950, 388599907900]

約数ペア:

[(1, 388599907900), (2, 194299953950), (4, 97149976975), (5, 77719981580), (10, 38859990790), (20, 19429995395), (25, 15543996316), (31, 12535480900), (50, 7771998158), (62, 6267740450), (89, 4366291100), (100, 3885999079), (124, 3133870225), (155, 2507096180), (178, 2183145550), (310, 1253548090), (356, 1091572775), (445, 873258220), (620, 626774045), (775, 501419236), (890, 436629110), (1091, 356186900), (1291, 301006900), (1550, 250709618), (1780, 218314555), (2182, 178093450), (2225, 174651644), (2582, 150503450), (2759, 140848100), (3100, 125354809), (4364, 89046725), (4450, 87325822), (5164, 75251725), (5455, 71237380), (5518, 70424050), (6455, 60201380), (8900, 43662911), (10910, 35618690), (11036, 35212025), (12910, 30100690), (13795, 28169620), (21820, 17809345), (25820, 15050345), (27275, 14247476), (27590, 14084810), (32275, 12040276), (33821, 11489900), (40021, 9709900), (54550, 7123738), (55180, 7042405), (64550, 6020138), (67642, 5744950), (68975, 5633924), (80042, 4854950), (97099, 4002100), (109100, 3561869), (114899, 3382100), (129100, 3010069), (135284, 2872475), (137950, 2816962), (160084, 2427475), (169105, 2297980), (194198, 2001050), (200105, 1941980), (229798, 1691050), (275900, 1408481), (338210, 1148990), (388396, 1000525), (400210, 970990), (459596, 845525), (485495, 800420), (574495, 676420)]