20512490040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{17657}}^1$

素因数の和:18142

約数の個数: 192

約数和(自身を含む): 76358842560

約数和(自身を除く): 55846352520

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, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 461, 504, 630, 840, 922, 1260, 1383, 1844, 2305, 2520, 2766, 3227, 3688, 4149, 4610, 5532, 6454, 6915, 8298, 9220, 9681, 11064, 12908, 13830, 16135, 16596, 17657, 18440, 19362, 20745, 25816, 27660, 29043, 32270, 33192, 35314, 38724, 41490, 48405, 52971, 55320, 58086, 64540, 70628, 77448, 82980, 88285, 96810, 105942, 116172, 123599, 129080, 141256, 145215, 158913, 165960, 176570, 193620, 211884, 232344, 247198, 264855, 290430, 317826, 353140, 370797, 387240, 423768, 494396, 529710, 580860, 617995, 635652, 706280, 741594, 794565, 988792, 1059420, 1112391, 1161720, 1235990, 1271304, 1483188, 1589130, 1853985, 2118840, 2224782, 2471980, 2966376, 3178260, 3707970, 4449564, 4943960, 5561955, 6356520, 7415940, 8139877, 8899128, 11123910, 14831880, 16279754, 22247820, 24419631, 32559508, 40699385, 44495640, 48839262, 56979139, 65119016, 73258893, 81398770, 97678524, 113958278, 122098155, 146517786, 162797540, 170937417, 195357048, 227916556, 244196310, 284895695, 293035572, 325595080, 341874834, 366294465, 455833112, 488392620, 512812251, 569791390, 586071144, 683749668, 732588930, 854687085, 976785240, 1025624502, 1139582780, 1367499336, 1465177860, 1709374170, 2051249004, 2279165560, 2564061255, 2930355720, 3418748340, 4102498008, 5128122510, 6837496680, 10256245020, 20512490040]

約数ペア:

[(1, 20512490040), (2, 10256245020), (3, 6837496680), (4, 5128122510), (5, 4102498008), (6, 3418748340), (7, 2930355720), (8, 2564061255), (9, 2279165560), (10, 2051249004), (12, 1709374170), (14, 1465177860), (15, 1367499336), (18, 1139582780), (20, 1025624502), (21, 976785240), (24, 854687085), (28, 732588930), (30, 683749668), (35, 586071144), (36, 569791390), (40, 512812251), (42, 488392620), (45, 455833112), (56, 366294465), (60, 341874834), (63, 325595080), (70, 293035572), (72, 284895695), (84, 244196310), (90, 227916556), (105, 195357048), (120, 170937417), (126, 162797540), (140, 146517786), (168, 122098155), (180, 113958278), (210, 97678524), (252, 81398770), (280, 73258893), (315, 65119016), (360, 56979139), (420, 48839262), (461, 44495640), (504, 40699385), (630, 32559508), (840, 24419631), (922, 22247820), (1260, 16279754), (1383, 14831880), (1844, 11123910), (2305, 8899128), (2520, 8139877), (2766, 7415940), (3227, 6356520), (3688, 5561955), (4149, 4943960), (4610, 4449564), (5532, 3707970), (6454, 3178260), (6915, 2966376), (8298, 2471980), (9220, 2224782), (9681, 2118840), (11064, 1853985), (12908, 1589130), (13830, 1483188), (16135, 1271304), (16596, 1235990), (17657, 1161720), (18440, 1112391), (19362, 1059420), (20745, 988792), (25816, 794565), (27660, 741594), (29043, 706280), (32270, 635652), (33192, 617995), (35314, 580860), (38724, 529710), (41490, 494396), (48405, 423768), (52971, 387240), (55320, 370797), (58086, 353140), (64540, 317826), (70628, 290430), (77448, 264855), (82980, 247198), (88285, 232344), (96810, 211884), (105942, 193620), (116172, 176570), (123599, 165960), (129080, 158913), (141256, 145215)]