20123572275

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:690

約数の個数: 144

約数和(自身を含む): 38556770304

約数和(自身を除く): 18433198029

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 67, 69, 75, 115, 127, 201, 207, 225, 335, 345, 381, 457, 575, 603, 635, 1005, 1035, 1143, 1371, 1541, 1675, 1725, 1905, 2285, 2921, 3015, 3175, 4113, 4623, 5025, 5175, 5715, 6855, 7705, 8509, 8763, 9525, 10511, 11425, 13869, 14605, 15075, 20565, 23115, 25527, 26289, 28575, 30619, 31533, 34275, 38525, 42545, 43815, 52555, 58039, 69345, 73025, 76581, 91857, 94599, 102825, 115575, 127635, 131445, 153095, 157665, 174117, 195707, 212725, 219075, 262775, 275571, 290195, 346725, 382905, 459285, 472995, 522351, 587121, 638175, 657225, 704237, 765475, 788325, 870585, 978535, 1334897, 1377855, 1450975, 1761363, 1914525, 2112711, 2296425, 2364975, 2611755, 2935605, 3521185, 3888613, 4004691, 4352925, 4892675, 6338133, 6674485, 6889275, 8806815, 10563555, 11665839, 12014073, 13058775, 14678025, 17605925, 19443065, 20023455, 31690665, 33372425, 34997517, 44034075, 52817775, 58329195, 60070365, 89438099, 97215325, 100117275, 158453325, 174987585, 268314297, 291645975, 300351825, 447190495, 804942891, 874937925, 1341571485, 2235952475, 4024714455, 6707857425, 20123572275]

約数ペア:

[(1, 20123572275), (3, 6707857425), (5, 4024714455), (9, 2235952475), (15, 1341571485), (23, 874937925), (25, 804942891), (45, 447190495), (67, 300351825), (69, 291645975), (75, 268314297), (115, 174987585), (127, 158453325), (201, 100117275), (207, 97215325), (225, 89438099), (335, 60070365), (345, 58329195), (381, 52817775), (457, 44034075), (575, 34997517), (603, 33372425), (635, 31690665), (1005, 20023455), (1035, 19443065), (1143, 17605925), (1371, 14678025), (1541, 13058775), (1675, 12014073), (1725, 11665839), (1905, 10563555), (2285, 8806815), (2921, 6889275), (3015, 6674485), (3175, 6338133), (4113, 4892675), (4623, 4352925), (5025, 4004691), (5175, 3888613), (5715, 3521185), (6855, 2935605), (7705, 2611755), (8509, 2364975), (8763, 2296425), (9525, 2112711), (10511, 1914525), (11425, 1761363), (13869, 1450975), (14605, 1377855), (15075, 1334897), (20565, 978535), (23115, 870585), (25527, 788325), (26289, 765475), (28575, 704237), (30619, 657225), (31533, 638175), (34275, 587121), (38525, 522351), (42545, 472995), (43815, 459285), (52555, 382905), (58039, 346725), (69345, 290195), (73025, 275571), (76581, 262775), (91857, 219075), (94599, 212725), (102825, 195707), (115575, 174117), (127635, 157665), (131445, 153095)]